If `alpha+beta+gamma=2pi,` then `tanalpha/2tanbeta/2+tangamma/2=tanalpha/2tanbeta/2tangamma/2` `tanalpha/2tanbeta/2+tanbeta/2tangamma/2+tangamma/2tanalpha/2=1` `tanalpha/2+tanbeta/2+tangamma/2=-tanalpha/2tanbeta/2tangamma/2` none of these

If tanalpha+tanbeta+tangamma=tanalphatanbetatangamma,then

If alpha+beta+gamma=2pi, then (a) tan(alpha/2)+tan(beta/2)+tan(gamma/2)=tan(alpha/2)tan(beta/2)tan(gamma/2) (b) tan(alpha/2)tan(beta/2)+tan(beta/2)tan(gamma/2)+tan(gamma/2)tan(alpha/2)=1 (c) tan(alpha/2)+tan(beta/2)+tan(gamma/2)=-tan(alpha/2)tan(beta/2)tan(gamma/2) (d)none of these

If alpha+beta+gamma=2pi , then show that tan.alpha/2 + tan.beta/2 + tan.gamma/2 = tan.alpha/2 tan.beta/2 tan.gamma/2 .

If alpha+beta=pi/2a n dbeta+gamma=alpha, then tanalpha equals 2(tanbeta+tangamma) (b) tanbeta+tangamma tanbeta+2tangamma (d) 2tanbeta+tangamma

(1+tanalphatanbeta)^2+(tanalpha-tanbeta)^2=

(1+tanalphatanbeta)^2+(tanalpha-tanbeta)^2=

Let alpha=som^(-1)((36)/(85)),beta=cos^(-1)(4/5)a n dgamma=tan^(-1)(8/(15)) then cotalpha+cotbeta+cotgamma=cotalphacotbetacotgamma tanalphatanbeta+tanbetatangamma+tanalphatangamma=1 tanalpha+tanbeta+tangamma=tanalphatanbetatangamma cotalphacotbeta+cotbetacotgamma+cotalphacotgamma=1

If tan(alpha-beta)=(sin2beta,)/(3-cos2beta) then (a) tanalpha=2tanbeta (b) tanbeta=2tanalpha (c) 2tanalpha=3tanbeta (d) 3tanalpha=2tanbeta

If alpha + beta = 90^@ and beta + gamma = alpha then tanalpha-tanbeta=?

If alpha+beta=pi/2a n dbeta+gamma=alpha, then tanalpha equals