Evaluate each of the following : `(4)/(cot^(2)30)+(1)/(sin^(2)30^(@))-2cos^(2)45^(@)-sin^(2)30^(@)`
Channel: Doubtnut
Date: 2020-01-03

Evaluate each of the following : `(4)/(cot^(2)30)+(1)/(sin^(2)30^(@))-2cos^(2)45^(@)-sin^(2)30^(@)`