Question

plz answer 11th ka 4th part

Answer 1

hey there,

I am meritkshitij here,

pls refer to given attachment please.

Answer 2

LHS = sin(90 -theta) cos(90-theta)
= costheta sintheta

RHS = tantheta/(1+tan²theta)
= sintheta costheta /(cos²theta +sin²theta)
= sintheta costheta

So, LHS = RHS (Ans).....