Prove that : cos20°/sin70° + cosθ/sin(90° - θ) = 2 - Sarthaks

Prove that : cos20°/sin70° + cosθ/sin(90° - θ) = 2

Solve the following equations: (i) sin 5x – sin x = cos 3x (ii) 2

Prove that sec70 sin20 +cos20 cosec70 = 2

sin 70 Prove that cos 20 sec 70 cosec20_2cos 70 - cosec20 = 0.

सिद्ध कीजिए कि(cos theta)/(sin(90^(@)-theta))+(sin

cos 20^(@)),(sin 70^(@), cos 70^(@))

Prove that sin(60 - theta).sin theta.sin(60 + theta) = dfrac{sin, 3theta}{4}

cot(90° - θ).sin(90° - θ)/sinθ + cot40°/tan50° - (cos^2 20° + cos

How to prove sin 70°/cos 20° = 1 without using a trigonometry

How to prove that sin 20° + 2 sin 40° = sqrt(3) cos 20° - Quora