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Find the angle between the lines whose d...

Find the angle between the lines whose direction cosines are given by the equation 3l + m + 5n = 0 and 6mn - 2nl + 5lm = 0

Text Solution

Verified by Experts

The correct Answer is:
`cos^(-1)((1)/(6))`
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Find the angle between the lines whose direction cosines satisfy the equaitons l + m + n = 0, l^(2) + m^(2) - n^(2) = 0 .

The angle between the lines whose direction cosines satisfy the equations l+m+n=0 " and " l^(2)=m^(2)+n^(2) is