Home
Class 12
MATHS
If alpha, beta, gamma are the angles whi...

If `alpha, beta, gamma` are the angles which a line makes with the coordinate axes ,then (A) `sin^2alpha=cos^2beta+cos^2gamma` (B) `cos^2alpha+cos^2beta+cos^2gamma=2` (C) `cos^2alpha+cos^2beta+cos^2gamma=1` (D) `sin^2alpha+sin^2beta=1+cos^2gamma`

Promotional Banner

Similar Questions

Explore conceptually related problems

If alpha+beta+gamma=pi , prove that : cos^2 alpha + cos^2 beta + cos^2 gamma+2cosalpha cosbeta cosgamma=1 .

If alpha,beta,gamma are the angle which a half ray makes with the positive direction of the axes then sin^2alpha+sin^2beta+sin^2gamma= (A) 1 (B) 2 (C) 0 (D) -1

If a line makes anles alpha, beta, gamma with the coordinate axes, porve that sin^2alpha+sin^2beta+sin^2gamma=2

If cos(alpha-beta)+cos(beta-gamma)+cos(gamma-alpha)=-3/2 , prove that cosalpha+cosbeta+cosgamma=sinalpha+sinbeta+singamma=0

Prove that (cos^2 alpha - cos^2 beta)/(cos^2 alpha*cos^2 beta) = tan^2 beta - tan^2 alpha

If a line makes angle "alpha","beta\ and\ gamma" with the coordinate axes, find the value of "cos"2"alpha"+"cos"2"beta"+"cos"2"gamma"dot

If a line makes angles alpha, beta, gamma with the axes then cos2alpha +cos2beta+cos2gamma = (A) -2 (B) -1 (C) 1 (D) 2

The value of cos^(2) alpha +cos^(2) beta +cos^(2) gamma is _____ .

Show that cos ^2 alpha + cos^2 (alpha +Beta) - 2 cos alpha cos betacos (alpha+ beta) =sin^2 beta

f(alpha,beta) = cos^2(alpha)+ cos^2(alpha+beta)- 2 cosalpha cosbeta cos(alpha+beta) is