If `tan(alpha/2)=m`, then the value of `(1-2sin^2(alpha/2))/(1+sinalpha)` is

If tan((alpha)/(2))=m then the value of (1-2sin^(2)((alpha)/(2)))/(1+sin alpha) is

If (2 sin alpha)/(1 + cos alpha + sin alpha) = 3/4 , then the value of (1 - cos alpha + sinalpha)/(1 + sin alpha) is equal to

If tanalpha=2 , then the value of (sinalpha)/(sin^(3)alpha+cos^(3)alpha) is

If (2 sin alpha)/(1 + cos alpha + sin alpha) = 3/4 , then the value of (1 + cos alpha + sinalpha)/(1 + sin alpha) is equal to

If alpha is in first quadrant such that tan^(2)alpha=(8)/(7) , then the value of ((1+sinalpha)(1-sinalpha))/((1+cosalpha)(1-cosalpha))

If alpha in [pi/2,pi] , then the value of sqrt(1+sin alpha)- sqrt(1-sinalpha) is equal to:

If cos alpha=(3)/(5), then value of (sin alpha-(1)/(tan alpha))/(2tan alpha) is

If [int_0^1(dt)/(t^2+2tcosalpha+1)]x^2-[int_- 3^3(t^2sin2t)/(t^2+1)dt]x-2=0 (0 < alpha < pi) then the value of x is (i)+-sqrt((alpha)/(2sinalpha)) (ii)+-sqrt((2sinalpha)/alpha) (iii) +-sqrt(alpha/sinalpha) (iv) +-2sqrt(sinalpha/alpha)

tan (alpha + beta) =1/2, tan(alpha - beta) = 1/3 "then the value of" tan^(2) alpha is-

If sinalpha=1/2 and cosbeta=1/2 , then the value of (alpha+beta) is