Evaluate each of the following :
`2cos^(2)60^(@)+3sin^(2)45^(@)-3sin^(2)30^(@)+2cos^(2)90^(@)`

Evaluate each of the following :- 2sin^(2)30^(@)-3cos^(2)45^(@)+tan^(2)60^(@)

Evaluate each of the following :- sin^(2)30^(@)+sin^(2)45^(@)+sin^(2)60^(@)+sin^(2)90^(@)

Evaluate each of the following :- (tan^(2)60^(@)+4cos^(2)45^(@)+3sec^(2)30^(@)+5cos^(2)90^(@))/(cosec30^(@)+sec60^(@)-cot^(2)30^(@))

Evaluate each of the following :- 4/(cot^(2)30^(@))+1/(sin^(2)60^(@))-cos^(2)45^(@)

Evaluate each of the following : 3cos^(2)30^(@)+sec^(2)30^(@)+2cos0^(@)+3sin90^(@)-tan^(2)60^(@)

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^(@)

Evaluate the following : (5cos^(2)60^(@)+4sec^(2)30^(@)-tan^(2)45^(@))/(sin^(2)30^(@)+cos^(2)30^(@))

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

Evaluate: sin^(2)60^(@) cos^(2)45^(@) cos^(2)60^(@)" cosec"^(2)90^(@)