[" If "tan theta=(1)/(2)" and "tan varphi=(1)/(3)," then the value of "theta+varphi" is "],[[" a."(pi)/(6)," b."pi," c."0]]

If tan theta=(1)/(2) andtan varphi =(1)/(3), then the value of theta+varphi is (pi)/(6) (b) pi(c)0(d)(pi)/(4)

If (1+ tan theta) (1+ tan phi)=2, then the value of (theta+ phi) is

Given both theta and phi are acute angles and sin theta=(1)/(2),cos varphi=(1)/(3), then the value of theta+varphi belongs to (a)((pi)/(3),(pi)/(2)]( b) ((pi)/(2),(2 pi)/(3)] (c) ((2 pi)/(3),(5 pi)/(6)] (d) ((5 pi)/(6),pi]

If tan 2 theta.tan 4 theta =1 , then the value of 3 theta is

If tan theta=(1)/(sqrt(3)), then find the value of (2tan theta)/(1-tan^(2)theta)

If tan2theta.tan4theta=1 , then the value of tan3theta is

If tan theta=(2x-K)/(K sqrt(3)) and tan varphi=(x sqrt(3))/(2K-x), then show that | varphi-theta|=30^(@)

If tan 7 theta tan 2 theta = 1 , then the value of tan 3 theta is