`sin^(2)25^(@)+sin^(2)65^(@)+"co s ec"^(2)57^(@)-tan^(2)33^(@)`का मान ज्ञात करे ।

sin ^(2) 25^(@) + sin ^(2) 65^(@) is equal to

Evaluate: cos^(2)25^(@)-sin^(2)65^(@)-tan^(2)45^(@)

Prove that (sin^(2)30^(@)+cos^(2)30^(@))/(sec^(2)57^(@)-tan^(2)57^(@))=1

sin^(2)5^(@) + sin^(2)25^(@) + sin^(2)45^(@) + sin^(2) 65^(@) + sin^(2) 85^(@) is equal to:

Evaluate: (sec^(2)(90^(@) - theta)-cot^(2) theta)/(2 (sin^(2) 25^(@)+sin^(2) 65^(@)))+(2 sin^(2)30^(@)tan^(2) 32^(@) tan^(2)58^(@))/(3(sec^(2)33^(@)-cot^(2)57^(@))) .

The value of sin^2 48^@ +sin^2 42^@ - sec^2 30^@+ tan^2 60^@ is equal to : sin^2 48^@ +sin^2 42^@ - sec^2 30^@+ tan^2 60^@ का मान ज्ञात करें |

If x=sec57^(@) , then cot^(2)33^(@)+sin^(2)57^(@)+sin^(2)33^(@)+cosec^(2)57^(@)cos^(2)33^(@)+sec^(2)33^(@)sin^(2)57^(@) is equal to:

The value of [ ( sin^(2) 25^(@) + sin^(2) 65^(@))/(cos^(2) 24^(@) + cos^2 66^(@)) + sin^(2)61^(@) + cos 61^@ sin 29^(@)] is :

(cos^(2)33^(@)-cos^(2)57^(@))/(sin21^(@)-cos21^(@))=