`sin^2(15+A)-sin^2(15-A)`

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Evaluate : sin^2 (15^0 +A) - sin^2 (15^0 -A)

Evaluate :sin^(2)(15^(0)+A)-sin^(2)(15^(0)-A)

32sin^(6)15^(@)-48sin^(4)15^(@)+18sin^(2)15^(@)=

sin^2 75^@-sin^2 15^@ =

32sin^(6) 15^@ -48 sin^(4) 15 ^(@) + 18 sin^2 15^@ =

The value of : "sin"^(2)(15^(@)+x)-"sin"^(2)(15^(@)-x) =…….

sin^(2) 75^(@) - sin^(2)15^(@)=

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

sin ^2 5^@ + sin ^2 10^@ + sin ^2 15 ^2 + …….. + sin^2 90^2 =

Prove that sin^(2)5^(@) +sin^(2)10^(@) + sin^(2)15^(@)+...+sin^(2)90^(@)=(19)/(2)