Class 10

Kashvi Rao

Asked: October 30, 2020In: Class 10

If tan A = cot B, prove that A + B = 90°.

NCERT Solutions for Class 10 Maths Chapter 8 Important NCERT Questions Introduction Trigonometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 8.3 Page No:187 Questions No:4

Kashvi Rao

Asked: October 30, 2020In: Class 10

If sec 4A = cosec (A – 20°), where 4A is an acute angle, find the value of A.

NCERT Solutions for Class 10 Maths Chapter 8 Important NCERT Questions Introduction Trigonometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 8.3 Page No:189 Questions No:5

Kashvi Rao

Asked: October 30, 2020In: Class 10

If A, B and C are interior angles of a triangle ABC, then show that Sin(B+C/2) = cos A/2.

NCERT Solutions for Class 10 Maths Chapter 8 Important NCERT Questions Introduction Trigonometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 8.3 Page No:190 Questions No:6

Kashvi Rao

Asked: October 30, 2020In: Class 10

Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°.

NCERT Solutions for Class 10 Maths Chapter 8 Important NCERT Questions Introduction Trigonometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 8.3 Page No:190 Questions No:7

Sarthak

Asked: October 30, 2020In: Class 10

Express the trigonometric ratios sin A, sec A and tan A in terms of cot A.

NCERT Solutions for Class 10 Maths Chapter 8 Important NCERT Questions Introduction Trigonometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 8.4 Page No:193 Questions No:1

Sarthak

Asked: October 30, 2020In: Class 10

Write all the other trigonometric ratios of angle A in terms of sec A.

NCERT Solutions for Class 10 Maths Chapter 8 Important NCERT Questions Introduction Trigonometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 8.4 Page No:193 Questions No:2

Sarthak

Asked: October 30, 2020In: Class 10

Evaluate the following trigonometric values.

NCERT Solutions for Class 10 Maths Chapter 8 Important NCERT Questions Introduction Trigonometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 8.4 Page No:193 Questions No:3 (i) sin² 63° + sin² 27° / cos² 17° ...

Taahira

Asked: October 30, 2020In: Class 10

Find the distance between the following pairs of points : (i) (2, 3), (4, 1) (ii) (– 5, 7), (– 1, 3) (iii) (a, b), (– a, – b)

NCERT Solutions for Class 10 Maths Chapter 7 Important NCERT Questions Coordinate Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.1 Page No:161 Questions No:1

Taahira

Asked: October 30, 2020In: Class 10

Find the distance between the points (0, 0) and (36, 15). Can you now find the distance between the two towns A and B discussed in Section 7.2.

NCERT Solutions for Class 10 Maths Chapter 7 Important NCERT Questions Coordinate Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.1 Page No:161 Questions No:2

Taahira

Asked: October 30, 2020In: Class 10

Determine if the points (1, 5), (2, 3) and (– 2, – 11) are collinear.

NCERT Solutions for Class 10 Maths Chapter 7 Important NCERT Questions Coordinate Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.1 Page No:161 Questions No:3

Category: Class 10

If tan A = cot B, prove that A + B = 90°.

If sec 4A = cosec (A – 20°), where 4A is an acute angle, find the value of A.

If A, B and C are interior angles of a triangle ABC, then show that Sin(B+C/2) = cos A/2.

Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°.

Express the trigonometric ratios sin A, sec A and tan A in terms of cot A.

Write all the other trigonometric ratios of angle A in terms of sec A.

Evaluate the following trigonometric values.

Find the distance between the following pairs of points : (i) (2, 3), (4, 1) (ii) (– 5, 7), (– 1, 3) (iii) (a, b), (– a, – b)

Find the distance between the points (0, 0) and (36, 15). Can you now find the distance between the two towns A and B discussed in Section 7.2.

Determine if the points (1, 5), (2, 3) and (– 2, – 11) are collinear.

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