Find the value of `sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+.............+sin^(2)90^(@)`.

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Find the value of sin^(2) 45^(@) - sin^(2) 15^(@)

The value of sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+ . . . .+sin^(2)90^(@) is equal to

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

[sin^(2)5^(0)+sin^(2)10^(0)+sin^(2)15^(0)+...........],[+sin^(2)90^(0)=..........]

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

Show that sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+.....+sin^(2)90^(@)=9(1)/(2)

Write the value of 2sin 75^(@) sin15^(@)

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

What is the value of sin^(2) 15^(@) + sin^(2) 20^(@) + sin^(2)25^(@) + ……… + sin^(2) 75^(@) ?