(27)*sin^(2)85+sin^(2)5+sin^(2)67+sin223=2

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

(sin^(2)1^(@) + sin^(2)3^(@) + sin^(2)5^(@) +sin^(2)7^(@) + ….. + sin^(2)87^(@) + sin^(2)89^(@)) equals

The value of the expression sin^(2)1^(@)+sin^(2)11^(@)+sin^(2)21^(@)+ sin^(2)31^(@)+sin^(2)41^(@)+sin^(2)45^(@)+ sin^(2)49^(@)+sin^(2)59^(@)+sin^(2)69^(@)+ sin^(2)79^(@)+sin^(2)89^(@) is :

(A) sin^(2)5+sin^(2)10+......+sin^(2)85=(17)/(2) (R) : If alpha+ beta=90^(@) then sin^(2)alpha+ sin ^(2) beta=1

sin ^ (2) 5 + sin ^ (2) 10 + sin ^ (2) 15 + ... + sin ^ (2) 180 =

sin^(2)5^@+sin^(2)10^@+sin^(2)15^@ +.......+sin^(2)85^@ + sin^(2)90^@=

sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+ .....+sin^(2)85^(@)+sin^(2)90^(@) is equal to

The value of the determinant Delta=|{:(sin^(2)23^(@)" "sin^(2)67^(@)" "cos180^(@)),(-sin^(2)67^(@)" "-sin^(2)23^(@)" "-cos180^(@)),(cos180^(@)" "sin^(2)23^(@)" "sin^(2)67^(@)):}| is

It is given that sin54^(@)=(sqrt(5)+1)/(4), the value of (64sin^(4)27^(@)-64sin^(2)27^(@)+6)^(2)-15(sin^(2)27^(@)+sin^(2)63^(@)) is equal to

sin ^ (2) 27 ^ (@) + sin ^ (2) 87 ^ (@) + sin ^ (2) 33 ^ (@) =