1.

If alpha, beta and gamma are real numbers, then : Delta=|(1,cos(beta-alpha),cos(gamma-alpha)),(cos(alpha-beta),1,cos(gamma-beta)),(cos(alpha-gamma),cos(beta-gamma),1)| ie equal to :

Answer»

`-1`
`COS ALPHA cos BETA cos GAMMA`
`cos alpha +cos beta +cos gamma`
0

Answer :D


Discussion

No Comment Found

Related InterviewSolutions