If `(1-tantheta)/(1+tantheta) = 1/sqrt3` , where `theta in (0, pi/2)` , then `theta `=
`(a) pi/6`
`(b) pi/4`
`(c) pi/12`
`(d) pi/3`

cot^(-1)(-sqrt3)= (a) -pi/6 (b) (5pi)/6 (c) pi/3 (d) (2pi)/3

If (3+2i sintheta)/(1-2i sintheta) is a real number and 0lt theta lt 2pi , then theta is a. pi \ b. pi/2 \ c. pi/3 \ d. pi/6

sin^(-1)((-1)/2) (a) pi/3 (b) -pi/3 (c) pi/6 (d) -pi/6

If lim_(x->0)[1+x1n(1+b^2)]^(1/x)=2bsin^2theta,b >0,where theta in (-pi,pi], then the value of theta is (a)+-pi/4 (b) +-pi/3 (c) +-pi/6 (d) +-pi/2

If tanA=1/2andtanB=1/3, then: A+B= (a) pi/4 (b) 0 (c) pi (d) pi/6

If sintheta + cos theta = (1+ sqrt(3))/2 , where 0 lt theta lt pi/2 , then what is tantheta + cot theta equal to ?

If sin^(22)theta+cos^(42)theta=(3)/(4) where theta in[0,(pi)/(2)] then find the sum of all values of theta (a) pi (b) -pi(c)(5 pi)/(4) (d) (pi)/(2)

If t a ntheta+s e ctheta=sqrt(3),\ 0

If tantheta+tan2theta+sqrt(3)tanthetatan2theta=sqrt(3) , then theta=(npi)/(3)+(pi)/(9) .