If the angle between →a=2x2^i+4x^j+^k and →b=7^i−2^j+x^k is obtu – InterviewSolution

1.	If the angle between →a=2x2^i+4x^j+^k and →b=7^i−2^j+x^k is obtuse and the angle between →b and Z− axis is acute and less than π6, then
Answer» If the angle between $\to a = 2 x^{2}^i + 4 x^j +^k$ and $\to b = 7^i - 2^j + x^k$ is obtuse and the angle between $\to b$ and $Z -$ axis is acute and less than $\frac{π}{6},$ then

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