To represent √9.3 on the number line, draw AB = 9.3 units. Now produce AB to C, such that BC = 1 unit. Draw the perpendicular bisector of AC which intersects AC at 0. Taking O as centre and OA as radius, draw a semi-circle which intersects D to the perpendicular at B. Now taking 0 as centre and OD aRead more

To represent √9.3 on the number line, draw AB = 9.3 units. Now produce AB to C, such that BC = 1 unit. Draw the perpendicular bisector of AC which intersects AC at 0. Taking O as centre and OA as radius, draw a semi-circle which intersects D to the perpendicular at B. Now taking 0 as centre and OD as radius, draw an arc, which intersects AC produced at E. Hence, OE = √9.3.

With a scale or tape we get only an approximate rational number as the result of our measurement. That is why n can be approximately represented as a quotient of two rational numbers. As a matter of mathematical truth it is irrational.

With a scale or tape we get only an approximate rational number as the result of our measurement. That is why n can be approximately represented as a quotient of two rational numbers. As a matter of mathematical truth it is irrational.

It is possible to learn about HTML in grade 8, as it is a basic technology used to build websites and is often taught as part of computer science classes. HTML is a markup language used to structure the content of a website, and the basics are easy to learn. There are many important skills to learnRead more

It is possible to learn about HTML in grade 8, as it is a basic technology used to build websites and is often taught as part of computer science classes. HTML is a markup language used to structure the content of a website, and the basics are easy to learn.

There are many important skills to learn in computer science. The most important skill will depend on a person’s individual goals and interests. Being able to think critically and approach problems in a systematic way is an important skill for a computer scientist. It is important to continually learn new tools and technologies, and to be adaptable as new technologies and trends emerge.

A computer science class for class 8 students will cover a wide range of subjects from programming to robotics. Students will learn about the basics of using the internet, including searching, browsing and navigating websites. They will also learn about cybersecurity and how to stay safe online, including topics such as privacy and data security.

A kaleidoscope is a device that produces a symmetrical and repeating pattern of colors and shapes. It consists of several mirrors and a container filled with small, colorful objects, such as beads or pieces of glass. Light enters through one end and reflects off of the mirrors inside. The mirrors arRead more

A kaleidoscope is a device that produces a symmetrical and repeating pattern of colors and shapes. It consists of several mirrors and a container filled with small, colorful objects, such as beads or pieces of glass. Light enters through one end and reflects off of the mirrors inside. The mirrors are angled in such a way that the reflected light is then reflected again, and again.

## Represent √9.3 on the number line.

To represent √9.3 on the number line, draw AB = 9.3 units. Now produce AB to C, such that BC = 1 unit. Draw the perpendicular bisector of AC which intersects AC at 0. Taking O as centre and OA as radius, draw a semi-circle which intersects D to the perpendicular at B. Now taking 0 as centre and OD aRead more

To represent √9.3 on the number line, draw AB = 9.3 units. Now produce AB to C, such that BC = 1 unit. Draw the perpendicular bisector of AC which intersects AC at 0. Taking O as centre and OA as radius, draw a semi-circle which intersects D to the perpendicular at B. Now taking 0 as centre and OD as radius, draw an arc, which intersects AC produced at E. Hence, OE = √9.3.

See less## Rationalise the denominators of the following: 1/√7.

(i) 1/√7 = 1/√7 × √7/√7 = √7/7

(i) 1/√7 = 1/√7 × √7/√7 = √7/7

See less## Rationalise the denominators of the following: 1/(√7 – 2).

(ii) 1/(√7 - √6) = 1/(√7 - √6) × (√7 + √6)/(√7 + √6) = (√7 + √6)/((√7)² - (√6)²)) = (√7 + √6)/(7 - 6) = √7 + √6

(ii) 1/(√7 – √6) = 1/(√7 – √6) × (√7 + √6)/(√7 + √6) = (√7 + √6)/((√7)² – (√6)²)) = (√7 + √6)/(7 – 6) = √7 + √6

See less## Simplify each of the following expression: (√5 – √2) (√5 + √2).

(iv) (√5 - √2)(√5 + √2) = (√5)² - (√2)² = 5 - 2 = 3 [∵ (a - b)(a + b) = a² - b²]

(iv) (√5 – √2)(√5 + √2) = (√5)² – (√2)² = 5 – 2 = 3 [∵ (a – b)(a + b) = a² – b²]

See less## Recall, π is defined as the ratio of the circumference (say c) of a circle to its diameter (say d). That is, π= c/d. This seems to contradict the fact that πis irrational. How will you resolve this contradiction?

With a scale or tape we get only an approximate rational number as the result of our measurement. That is why n can be approximately represented as a quotient of two rational numbers. As a matter of mathematical truth it is irrational.

With a scale or tape we get only an approximate rational number as the result of our measurement. That is why n can be approximately represented as a quotient of two rational numbers. As a matter of mathematical truth it is irrational.

See less## Simplify each of the following expression: (3+√3)(2+√2).

(i) (3 + √3)(2 + √2) = 6 + 3√2 + 2√3 + 2√3 + √6

(i) (3 + √3)(2 + √2) = 6 + 3√2 + 2√3 + 2√3 + √6

See less## Simplify each of the following expression: (3 + √3) (3 – √3)

(ii) (3 + √3)(3 - √3) = 3² - (√3)² [∵ (a + b)(a - b) = a² - b²] = 9 - 3 = 6

(ii) (3 + √3)(3 – √3) = 3² – (√3)² [∵ (a + b)(a – b) = a² – b²] = 9 – 3 = 6

See less## Simplify each of the following expressions: (√5 + √2)²

(iii) (√5 + √2)² = (√5)² + (√2)² + 2 × √5 × √2 = 7 + 2√10 [∵ (a + b)² = a² + b² + 2ab]

(iii) (√5 + √2)² = (√5)² + (√2)² + 2 × √5 × √2 = 7 + 2√10 [∵ (a + b)² = a² + b² + 2ab]

See less## Can we learn about HTML in class 8? “Which of the following is the most important skill to learn in computer science?”

It is possible to learn about HTML in grade 8, as it is a basic technology used to build websites and is often taught as part of computer science classes. HTML is a markup language used to structure the content of a website, and the basics are easy to learn. There are many important skills to learnRead more

It is possible to learn about HTML in grade 8, as it is a basic technology used to build websites and is often taught as part of computer science classes. HTML is a markup language used to structure the content of a website, and the basics are easy to learn.

There are many important skills to learn in computer science. The most important skill will depend on a person’s individual goals and interests. Being able to think critically and approach problems in a systematic way is an important skill for a computer scientist. It is important to continually learn new tools and technologies, and to be adaptable as new technologies and trends emerge.

A computer science class for class 8 students will cover a wide range of subjects from programming to robotics. Students will learn about the basics of using the internet, including searching, browsing and navigating websites. They will also learn about cybersecurity and how to stay safe online, including topics such as privacy and data security.

For More details Click here => https://www.tiwariacademy.com/ncert-solutions/class-8/computer/

See less## Can you provide me video explanation for class 8 science?

A kaleidoscope is a device that produces a symmetrical and repeating pattern of colors and shapes. It consists of several mirrors and a container filled with small, colorful objects, such as beads or pieces of glass. Light enters through one end and reflects off of the mirrors inside. The mirrors arRead more

A kaleidoscope is a device that produces a symmetrical and repeating pattern of colors and shapes. It consists of several mirrors and a container filled with small, colorful objects, such as beads or pieces of glass. Light enters through one end and reflects off of the mirrors inside. The mirrors are angled in such a way that the reflected light is then reflected again, and again.

For important Questions and Chapters click here => https://www.tiwariacademy.com/ncert-solutions/class-8/science/

See here for video Solution 👀👇

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