Question

express as sum or difference of cos 3 theta sin theta​

Answer 1

Step-by-step explanation:

Express the following as a sum or difference of two trigonometric ratios:

(i) 2sin4θ⋅cos2θ

(ii) 2sin2θ⋅cos4θ

(iii) 2sin2θ⋅sin4θ

(iv) 2cos2θ⋅cos4θ