`sin^2 1^@+sin^2 2^@+sin^2 3^@+..........................+sin^2 89^@=?`

The value of (tan29^@ cot61^@ - cosec^2 61^@) + cot^2 54^@ - sec^2 36^@ + (sin^2 1^@ + sin^2 3^@ + sin^2 5^@ + ... + sin^2 89^@) is:

[sin^2 1^@ + sin^2 2^@ +sin^2 3^@ + ……………….. + sin^2 87^@ + sin^2 88^@ + sin^2 89^@] equals____

The value of sin^2(1^@)+sin^2(5^@)+sin^2(9^@)+..........+sin^2(89^@) is (A) 11frac(1)(2) (B) 11sqrt2 (C) 11 (D) frac(11)(sqrt2)

The value of sin^2 1^@ + sin^2 3^@ + sin^2 5^@ +…+ sin^2 87^@ + sin^2 89^@ is

The value of the expression (2(sin 1^@ + sin 2^@ + sin 3^@ + .......+sin 89^@))/(2(cos 1^@ + cos 2^@ + cos 3^@ + ........+cos 44^@)+1) is equal to

The value of the expression (2(sin 1^@ + sin 2^@ + sin 3^@ + .......+sin 89^@))/(2(cos 1^@ + cos 2^@ + cos 3^@ + ........+cos 44^@)+1) is equal to

(sin^2 1^@ + sin^2 3^@ + sin^2 5^@ + ………………… + sin^2 85^@ + sin^2 87^@ + sin^2 89^@) equals____

2 sin A cos ^(3) A-2 sin ^(3) A cos A= ................. A) sin 4A B) 1/2 sin 4 A C) 1/4 sin 4A D) 1/8 sin 4A

The value of sin^(2)1^(@)+sin^(2)2^(@)+sin^(2)3^(@)+....+sin^(2)88^(@)+sin^(2)89^(@) is equal to