Math, asked by vinnyvvinny8, 4 months ago

find the cosine of the angle between the lines whose direction cosines are (1/√3,1/√3,1/√3) and (1/√2,1/√2,0)​

Answers

Answered by aniket6669
5

Answer:

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Answered by kandregulapooja
9

Answer:

cos theta= l1l2+m1m2+n1n2

=1/√3×1/√2 +1/√3+1/√2 +0

=2/√6

by rationalisation of denominator

=√6/3

√3×√2/√3×√3

=√2/3

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