Q.If vectors ˆ ˆ ˆ p xi 3j 2k, = + + = + + = + + = + + ˆ ˆ ˆ a 2i 2j 3k = + + = + + = + + = + + and ˆ ˆ ˆ b 2i 3j 4k = + + = + + = + + = + + are coplanars, then value of x is
Correct answer: –2
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