[" 89."sin765^(@)" is equal to "],[[" (A) "1," (B) "0],[" (C) "(sqrt(3))/(2)," (D) "(1)/(sqrt(2))]]

sin 765^(@)

sin 765^(@)

sin 765^(@)

sin 765^(@)

sin 765^(@) is equal to a)1 b)0 c) sqrt(3)//2 d) 1//sqrt2

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)

If B=[(6,7),(8,9)] then B^(-1) is equal to

Find: 76.5 div 0.15

Find the value of (ix) cot 765^(@)