Question

if a line make an angles a b c respectively with positive x axis y axis and z axis then sin square a + sinn square b + sin square c is​

Answer 1

Answer:

Answer

A] The line makes α,β,γ angles with x , y , z

axes

∴cos

2

α+cos

2

β+cos

2

γ=1

=1−sin

2

α+1−sin

2

β+1−sin

2

γ=1

=−sin

2

α−sin

2

β−sin

2

γ=−1−1

=∴sin

2

α+sin

2

β+sin

2

γ=2