Question

Cos Alfa =sin Alfa value of alfa

Answer 1

cos (α) = sin (α) => cos^2 (α) = sin^2 (α)

sin^2 (α) + cos^2 (α) = 1

sin^2 (α) + sin^2 (α) = 1

2 × sin^2 (α) = 1

sin^2 (α)=1/2

sin (α) = 1 /√2

but,

sin (45°) = 1 /√2 = sin (α)

α = 45°

Answer 2

Blue answer

Step-by-step explanation:

$Blue answer$