1.

The number of integral values of p, such that the angle between vectors →a=p^i+3^j−7^k and →b=p^i−p^j+4^k is obtuse, is

Answer» The number of integral values of p, such that the angle between vectors a=p^i+3^j7^k and b=p^ip^j+4^k is obtuse, is




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