Lines r = (2 i - 3 j + 7 k ) + (2 i + p j + 5 k ) and r = (p i + 2 j + 3 k ) + (3 i - p j + p k ) are...

Question

Lines r = (2 i - 3 j + 7 k ) + (2 i + p j + 5 k ) and r = (p i + 2 j + 3 k ) + (3 i - p j + p k ) are perpendicular for all values of and if p is equal to

Accepted Answer

(D)

MHT CET Mathematics question

Solution

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