Tiwari Academy Discussion

Kashvi Rao

Asked: October 30, 2020In: Class 10

If tan (A + B) = √3 and tan (A – B) = 1/√3 ; 0° B, find A and B.

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 8.2 Page No:187 Questions No:3

Kashvi Rao

Asked: October 30, 2020In: Class 10

Evaluate the following trigonometric equations.

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 8.2 Page No:187 Questions No:1 (i) sin 10° / cos 72° (ii) tan 26° / ...

Kashvi Rao

Asked: October 30, 2020In: Class 10

Show that the following trigonometric relation are true.

Class 10 Maths Chapter 8 Solutions in Hindi and English. 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:2 (i) tan 48° tan 23° tan 42° tan ...

Kashvi Rao

Asked: October 30, 2020In: Class 10

If tan 2A = cot (A – 18°), where 2A 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:187 Questions No:3

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

If tan (A + B) = √3 and tan (A – B) = 1/√3 ; 0° B, find A and B.

Evaluate the following trigonometric equations.

Show that the following trigonometric relation are true.

If tan 2A = cot (A – 18°), where 2A is an acute angle, find the value of A.

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.

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