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[" Q.7"sin^(2)5^(@)+sin^(2)10^(@)+sin^(2...

[" Q.7"sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+],[quad sin^(2)85^(@)+sin^(2)90^(@)=],[[" (A) "7," (B) "8],[" (C) "9(1)/(2)," (D) "10]]

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

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^(@) is equal to

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

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

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

The value of sin^(2)15^(@)+sin^(2)25^(@)+sin^(2)65^(@)+sin^(2)75^(@) is