Vectors →A=a^i+a^j+3^k and →B=a^i−2^j−^k are perpendicular to each other, then the positive value of a is

Vectors →A=a^i+a^j+3^k and →B=a^i−2^j−^k are perpendicular to

1.	Vectors →A=a^i+a^j+3^k and →B=a^i−2^j−^k are perpendicular to each other, then the positive value of a is
Answer» Vectors $\to A = a^i + a^j + 3^k$ and $\to B = a^i - 2^j -^k$ are perpendicular to each other, then the positive value of $a$ is

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Vectors →A=a^i+a^j+3^k and →B=a^i−2^j−^k are perpendicular to each other, then the positive value of a is

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