If the `vec P=ahat i+8hat j+ahat k and vec Q=ahat i-hat j-2hat k` are perpendicular each other then the positive value of a is.

If the vec P=ahat i+8hat j+ahat k and vec Q=ahat i-hat j-2hat k are perpendicular to each other then the positive value of 'a' is. (A) Zero (B) 1 (C) 2 (D) 4

" If the vectors "P=ahat i+ahat j+3hat k" and "Q=ahat i-2hat j-hat k" are perpendicular to each other, then the positive value of "a" is "

If the vectors vec A=hat i+hat j+3hat k and vec B=xhat i-2hat j-hat k are perpendicular to each other then the positive value of x is

If the vectors vec A=hat ai+ahat j+3hat k and vec B=hat ai-2hat j-hat k are perpendicular to each other,then the positive value of a is

The vector vec(P)= ahat(i)+ahat(j)+3hat(k) and vec(Q)= ahat(i)-2hat(j)-hat(k) are perpendicular to each other. The positive value of a is

The vectors vec P = a hat I + a hat j + 3 hat k) and vec Q = a hat I - 2 hat j - hat kl are peroendicular to each other. The positve value of (a) is.

The vectors 2hat i+3hat j-4hat k and ahat i+bhat j+chat k are perpendicular,

Find the value of lambda so that the vectors vec a=2hat i+lambdahat j+hat k and vec b=hat i-2hat j+3hat k are perpendicular to each other.

Find the value of lambda so that the vectors vec a=lambdahat i+3hat j-hat k and vec b=3hat i-6hat j+3hat k are perpendicular to each other

Write the value of lambda so that the vector vec a=2hat i+lambdahat j+hat k and vec b=hat i-2hat j+3hat j are perpendicular to each other.