15:{(sin^(2)22^(@)+sin^(2)68^(@))/(cos^(2)22^(@)+cos^(2)68^(@))+sin^(2)63^(@)+cos63^(@)sin27^(+)}

Find the value of [(sin^(2)22^(@)+sin^(2)68^(@))/(cos^(2)22^(@)+cos^(2)68^(@))+sin^(2)63^(@)+cos63^(@)sin27^(@)]

Answer the following by a number or a word or a sentence : What is the value of (sin^(2)22^(@)+sin^(2)68^(@))/(cos^(2)22^(@)+cos^(2)68^(@))+sin^(2)63^(@)+cos63^(@)sin27^(@) ?

(2sin^(2)53^(@)+1+2sin^(2)37^(@))/(3cos^(2)27^(@)-2+3cos^(2)63^(@))=?

sin^(2)22^(@)+sin^(2)38^(@)+sin22^(@) sin38^(@)=

Evaluate : (sin^(2)63^(@)+sin^(2)27^(@))/(cos^(2)17^(@)+cos^(2)73^(@))

The expression (1+sin22^(@)sin33^(@)sin35^(@))/(cos^(2)22^(@)+cos^(2)33^(@)+cos^(2)35^(@)) simplifies to

The value of sin^(2)22^(@) + sin^(2)68^(@) + cot^(2)30^(@) is

Prove that cosec^(2)22^(@)cot^(2)68^(@)=sin^(2)22^(@)+sin^(2)68^(@)+cot^(2)68^(@) .

(csc ^ (2) 63 ^ (@) + tan ^ (2) 24 ^ (@)) / (cot ^ (2) 66 ^ (@) + sec ^ (2) 27 ^ (@)) + (sin ^ (2) 63 ^ (@) + cos63 ^ (@) sin27 ^ (@) + sin27 ^ (@)) / (2 (csc ^ (2) 65 ^ (@) - tan ^ (2) 25 ^ ( @)))