The vector `vecP=ahatt+ahatj+3hatj and vecQ=ahati-2hatj-hatk`, are perpendicular to each other. The positive value of a is

The vector vecP=ahati+ahatj+3hatj and vecQ=ahati-2hatj-hatk , are perpendicular to each other. The positive value of a is

The vector vecP=ahati+ahatj+3hatj and vecQ=ahati-2hatj-hatk , are perpendicular to each other. The positive value of a is

The vector vecP=ahati+ahatj+3hatk and vecQ=ahati-8hatj-3hatk , are perpendicular to each other. The positive value of a is

The vectors vecP = ahati + ahatj+ 3hatk and vecQ = ahati-2hatj-hatk are perpendicular to each other. The positive value of ‘a’ is

If the vectors vecP=ahati+ahatj+3hatk' and 'vecQ=ahati-2hatj-hatk are perpendicular to each other. Find the value of a ?

If vector vecP=a hati + a hatj +3hatk and vecQ=a hati -2 hatj -hatk are perpendicular to each other , then the positive value of a is

If vector vecP=a hati + a hatj +3hatk and vecQ=a hati -2 hatj -hatk are perpendicular to each other , then the positive value of a is

If the vectors vecA=ahati+hatj-2hatk and vecB=ahati-ahatj+hatk are perpendicular to each other then the positve value of 'a' is

Vectors vecP=hati+2hatj+3hatk and vecQ=2hati+ahatj-5hatk are perpendicular .Find a.