1) Which function is positive in second quadrant a) Sinx b) Cos x c) Sinx and Cosec x d) Sin x and Cos x 2) What is the reciprocal of tan x a) Cot x b) -Cos x c) Sin x d) Sec x 3) What is expansion of Sin(A+B) a) SinA CosB+CosASinB b) SinB CosB+CosASinA c) SinA CosB-CosASinB d) SinACosA+CosBSinB

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