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Find the vector equation of a line pas...

Find the vector equation of a line passing through `3 hat i-5 hat j+7 hat k` and perpendicular to the plane `3x-4y+5z=8.`

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The correct Answer is:
`r=3hat(i)-5hat(j)+7hat(k)+lambda(3hat(i)-4hat(j)+5hat(k))`
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