Find the value of `Gamma(1/2)`

In this figure B is centre, if alpha = 50^(@), beta = 80^(@) . Find the value of gamma .

In previous, Find the value of gamma = C_(P) // C_(v) :

If [(0,2beta,gamma),(alpha,beta,-gamma),(alpha,-beta,gamma)] is orthogonal, then find the value of 2alpha^(2)+6beta^(2)+3gamma^(2).

If alpha,beta,gamma are the roots of the equation x^(3)-px^(2)+qx-r=0 find the value of (beta+gamma)(gamma+alpha)(alpha+beta)

If alpha, beta, gamma are zeroes of polynomial 6x^(3)+3x^(2)-5x+1 , then find the value of alpha^(-1)+beta^(-1)+gamma^(-1) .

If alpha,beta,gamma be the roots of ax^3+bx^2+cx+d=0 then find the value of suma^2 ,

If alpha,beta,gamma are the roots of the equation x^(3)+px^(2)+qx+r=0, then find he value of (alpha-(1)/(beta gamma))(beta-(1)/(gamma alpha))(gamma-(1)/(alpha beta))

The mean of y and 1/ gamma is z. Find the mean of gamma ^(2) and (1)/(gamma ^(2)).

Let alpha,beta, gammaare the roots of the cubic x^(3)-3x^(2)+1=0. Find a cubic whose roots underset alpha-2 alpha-2,(beta)/(beta-2),(gamma)/(gamma-2). Hence or rtherwise find the value of (alpha-2)(beta a-2)(gamma-2)

Let alpha,beta, gammaare the roots of the cubic x^(3)+-3x^(2)+1=0. Find a cubic whose roots underset alpha-2 alpha-2,(beta)/(beta-2),(gamma)/(gamma-2). Hence or rtherwise find the value of (alpha-2)(beta a-2)(gamma-2)