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The angle between the lines whose direction cosines satisfy th

Question

The angle between the lines whose direction cosines satisfy the equations $l + m + n = 0$ and $l^{2} = m^{2} + n^{2}$ is

\frac{π}{3}

\frac{π}{4}

\frac{π}{6}

\frac{π}{2}

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Sebastian Discussed

The angle between the lines whose direction cosines satisfy the equations

l + m + n = 0

and

l^{2} = m^{2} + n^{2}

5 mins ago

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Question Text	The angle between the lines whose direction cosines satisfy the equations $l + m + n = 0$ and $l^{2} = m^{2} + n^{2}$ is
Answer Type	Video solution: 1
Upvotes	150