Q. 175.0( 1 Vote )

If a line makes angles α, β and γ with the x-axis, y-axis and z-axis respectively then (sin2 α + sin2 β + sin2 γ) = ?
A. 1

B. 3

C. 2

D.

Answer :



is the square of the direction ratios of all three axes which is always equal to 1



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