Question

prove that tan 48× tan 27× tan 42° × tan 63×
cot 45° = sec^230° × tan^2 30​

Answer 1

Step-by-step explanation:

question is wrong,

In RHS,

it has to be this :- sec^2 30° - tan^2 30°

not this :- sec^2 30° × tan^2 30°.

pls. check