Question

Cos 70°/Sin 20° + Cos 69° Cosec 21°​

Answer 1

Step-by-step explanation:

sin(90° - θ) = cos θ cos (90° - θ) = sinθ tan(90° - θ) = cotθ cot(90° - θ) = tanθ sec(90° - θ) = cosecθ cosec(90° - θ) = secθ

$\huge\color{cyan}\boxed{\colorbox{black}{✿PLS FOLLOW✿}}$