Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Ex 8.2, 4 (i) - Chapter 8 Class 10 Introduction to Trignometry
Last updated at Aug. 16, 2023 by Teachoo
Ex 8.2
Ex 8.2, 1 (i)
Ex 8.2, 1 (ii)
Ex 8.2, 1 (iii)
Ex 8.2, 1 (iv) Important
Ex 8.2, 1 (v) Important
Ex 8.2, 2 (i) (MCQ)
Ex 8.2, 2 (ii) (MCQ)
Ex 8.2, 2 (iii) (MCQ) Important
Ex 8.2, 2 (iv) (MCQ)
Ex 8.2, 3 Important
Ex 8.2, 4 (i) Important You are here
Ex 8.2, 4 (ii) Important
Ex 8.2, 4 (iii)
Ex 8.2, 4 (iv)
Ex 8.2, 4 (v) Important
Transcript
Ex 8.2, 4 State whether the following are true or false. Justify your answer. sin (A + B) = sin A + sin B. We have to prove sin (A + B) = sin A + sin B Assuming A = 60° & B = 30° sin (A + B) = sin (60° + 30° ) = sin 90° = 1 sin A + sin B = sin 60° + sin 30° = 1/√3 + 1/2 = (√𝟑 + 𝟏)/𝟐 Since LHS ≠ RHS Thus, the given statement is False
