Question

Please solve it correctly. do not answer if you don't know it.​

Answer 1

Step-by-step explanation:

Taking Left Hand Side

Sin(90-A) = Cos A ( Allied angles)

Cos(90-A)= Sin A (Allied angles)

Tan A = sin A/ cos A

Putting all these values in left hand side we get

Sin A × Cos^2 A /sin A

Sin A cancel out by Sin A we get only

${cos}^{2}a$

That is

${ cos}^{2} a = {sin}^{2} ( {90}^{0} - a)$

Hence L. H. s = R. H. S