` sin^(2) 30^(@) + sin^(2) 45^(@) + sin^(2) 60^(@) +sin^(2) 90^(@)` का मान ज्ञात करो ।

The value of (1)/(2) sin ^(2) 90^(@) sin^(2) 30^(@) cos ^(2) 45^(@) + 4 tan ^(2) 30^(@) + (1)/(2) sin^(2) 90^(@) - 2 cos ^(2) 90^(@) is :

cot ^ (2) 60 ^ (@) + sin ^ (2) 45 ^ (@) + sin ^ (2) 30 ^ (@) + cos ^ (2) 90 ^ (@) = (13) / (12 )

The value of sin^2 30^@ cos^2 45^@ +4 tan^2 30^@+ 1/2 sin^2 90^@+ 2cos 90^@ is : sin^2 30^@ cos^2 45^@ +4 tan^2 30^@+ 1/2 sin^2 90^@+ 2cos 90^@ का मान ज्ञात करें |

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

({(4) / (tan ^ (2) 60 ^ (@)) + (1) / (cos ^ (2) 30 ^ (@)) - 2sin ^ (2) 45 ^ (@)}) / ( (sin ^ (2) 60 ^ (@) + cos ^ (2) 45 ^ (@)))

The value of sin^2 60^@ -sin^2 30^@

The value of sin^(2)60^(@)-sin^(2)30^(@) is:

Evaluate: (sin^(4) 60^(@) + sec^(4) 30^(@)) - 2 (cos^(2) 45^(@) - sin^(2) 90^(@))

Calculate : sec^(2)45^(@)-cot^(2)45^(@)-sin^(2)30^(@)-sin^(2)60^(@) .