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Direction Ratios

Two lines who...

Question

Two lines whose direction ratios are a₁, b₁, c₁ and a₂, b₂, c₂ are perpendicular, if

A

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B

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C

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D

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Solution

The correct option is B

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Similar questions

a_{1}, b_{1}, c_{1}

a_{2}, b_{2}, c_{2}

d . r . s

of two lines then

(a_{1} a_{2} + b_{1} b_{2} + c_{1} c_{2})^{2} + Σ (b_{I} c_{2} - b_{2^{C_{1}}})^{2} =

\frac{x - x_{1}}{a_{1}} = \frac{y - y_{1}}{b_{1}} = \frac{z - z_{1}}{c_{1}}

lies in a plane

a_{2} x + b_{2} y + c_{2} z = d,

then which of the following is / are correct -

Unique point is obtained for the pair of equations $a_{1}$ x + $b_{1}$ y + $c_{1}$ = 0 and $a_{2}$ x + $b_{2}$ y + $c_{2}$ = 0 if

Parallel lines are obtained for the pair of equations $a_{1} x + b_{1} y + c_{1} = 0$ and $a_{2} x + b_{2} y + c_{2} = 0$ if

What can you tell about the ratio of coefficients of the lines $a_{1}$ x + $b_{1}$ y + $c_{1}$ = 0 and $a_{2}$ x + $b_{2}$ y + $c_{2}$ = 0 from the graph ?

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Direction Ratios

Standard XII Mathematics