Tiwari Academy Discussion

Jay Singh

Asked: October 30, 2020In: Class 10

If angle A and angle B are acute angles such that cos A = cos B, then show that angle A = angle 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 8.1 Page No:181 Questions No:6

Jay Singh

Asked: October 30, 2020In: Class 10

If cot θ = 7/8, evaluate: (i) (1-sin) (1+sinθ) / (1-cosθ) (1+cosθ) (ii) cot²θ

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 8.1 Page No:181 Questions No:7

Jay Singh

Asked: October 30, 2020In: Class 10

If 3 cot A = 4, check whether 1- tan² A / 1+ tan² A= cos²A – sin² A or not.

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 8.1 Page No:181 Questions No:8

Jay Singh

Asked: October 30, 2020In: Class 10

In triangle ABC, right-angled at B, if tan A = 1/√3 find the value of sin A cos C + cos A sin C.

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 8.1 Page No:181 Questions No:9 (i) sin A cos C + cos A sin ...

Jay Singh

Asked: October 30, 2020In: Class 10

In angle PQR, right-angled at Q, PR + QR = 25 cm and PQ = 5 cm. Determine the values of sin P, cos P and tan P.

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 8.1 Page No:181 Questions No:10

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 Evaluate the following : (i) sin 60° cos 30° ...

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

If angle A and angle B are acute angles such that cos A = cos B, then show that angle A = angle B.

If cot θ = 7/8, evaluate: (i) (1-sin) (1+sinθ) / (1-cosθ) (1+cosθ) (ii) cot²θ

If 3 cot A = 4, check whether 1- tan² A / 1+ tan² A= cos²A – sin² A or not.

In triangle ABC, right-angled at B, if tan A = 1/√3 find the value of sin A cos C + cos A sin C.

In angle PQR, right-angled at Q, PR + QR = 25 cm and PQ = 5 cm. Determine the values of sin P, cos P and tan P.

Evaluate the following trigonometric equations:

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.

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