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Find the value of the following: (i)"s...

Find the value of the following:
(i)`"sin"^(2)30^(@)+"sin"^(2)45^(@)+"sin"^(2)60^(@)+"sin"^(2)90^(@)`
(ii)`2"sin"^(2)30^(@)-3cos^(2)45^(@)+cos^(2)60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
(i) `2(1)/(2)` (ii)`-(3)/(4)`
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