sin30^(@)sin^(2)60+3cos60^(@)tan45^(@)=2sec^(2)45^(@)-cosec^(2)90^(@)

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

Evaluate each of the following : (sin^(2)+30^(@)+4cot^(2)45^(@)-sec^(2)60^(@))(cosec^(2)45^(@)sec^(2)30^(@))

(4(sin^(2)60^(@)+cos^(2)60^(@)))/(tan^(2)45^(@)-cos^(2)90^(@)+sin90^(@))

Evaluate each of the following :- (cosec^(2)45^(@)sec^(2)30^(@))(sin^(2)30^(@)+4cot^(2)45^(@)-sec^(2)60^(@))

If x sin 60^(@) cos^(2)30^(@) =(tan^(2)45^(@) sec60^(@))/("cosec"60^(@)) , then find the value of x.

Solve for x: xsin30^@cos^2 45^@=(cot^2 30^@sec60^@tan45^@)/(cosec^2 45^@cosec30^@)

Evaluate sin^(2)45^(@)+cos^(2)60^(@)+cosec^(2)30^(@) .