A line makes angles `alpha,betaa n dgamma` with the coordinate axes. If `alpha+beta=90^0,` then find `gammadot`

A line makes angles alpha,beta,gamma with the coordinates axes . If alpha+beta=90^@ then gamma is equal to

If a line makes angles alpha,betaa n dgamma with threew-dimensional coordinate axes, respectively, then find the value of cos2alpha+cos2beta+cos2gammadot

A line makes angles alpha,beta,gammaa n ddelta with the diagonals of a cube. Show that cos^2alpha+cos^2beta+cos^2gamma+cos^2delta=4//3.

The side of a triangle inscribed in a given circle subtends angles alpha,betaa n dgamma at the centre. The minimum value of the arithmetic mean of cos(alpha+pi/2),cos(beta+pi/2) , and cos(gamma+pi/2) is equal to ____

If alpha+ beta=-7 and alpha beta=10 then find the value of alpha-beta=__ .

A right angle is divided into three positive parts alpha,betaa n dgammadot Prove that for all possible divisions t a nalpha+tanbeta+tangamma>1+tanalphatanbetatangammadot

If alpha,beta,a n dgamma are the an gles which a directed line makes with the positive directions of the co-ordinates axes, then find the value of sin^2alpha+sin^2beta+sin^2gammadot

If the distances of the vertices of a triangle =ABC from the points of contacts of the incercle with sides are alpha,betaa n dgamma then prove that r^2=(alphabetagamma)/(alpha+beta+gamma)

Find the direction cosines of a line which makes equal angles with the coordinate axes.

If alpha,betaa n dgamma are the roots of x^3+8=0 then find the equation whose roots are alpha^2,beta^2a n dgamma^2 .