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Solution of a Pair of Linear Equations

The angle bet...

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The angle between the lines whose direction cosines are given by the equations 3l+m+5n= 0, 6mn-2nl+5lm 0,is

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Q. Find the angle between the lines whose direction cosines are given by the equation

3 l + m + 5 n = 0

6 m n - 2 n l + 5 l m = 0

Q. The pair of lines whose direction cosines are given by the equations

3 l + m + 5 n = 0

6 m n - 2 n l + 5 l m = 0

Q. If two lines whose direction cosines given by the relations

3 l + m + 5 n = 0

6 m n - 2 n l + 5 l m = 0

and the angle between them is

θ

| 12 cos θ |

θ

be the angle between the lines whose direction cosines's are given by

3 l + m + 5 n = 0

6 m n - 2 n l + 5 l m = 0

. Find value of 6cos

θ

Q. The pair of lines whose directions cosines are given by the equations 3l + m + 5n = 0, 6mn – 2nl + 5lm = 0, are

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Solution of a Pair of Linear Equations

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