if `xi-3j+5k` and `-x i+xj+2k` are perpendicular to each other then the value of `x=`

if vectors 3 hat i - 2 hat j + m hat k and - 2 hat i+ hat j+4 hat k are perpendicular to each other , find the value of m

If the vectors vec(a) = 3 hat (j) + 6 hat (k) and vec (b) = - 2 hat (i) + m hat (j) - 3 hat (k) are perpendicular to each other , then the value of m is -

If the planes overset(to)( r) (2 hat(i) - lambda (j) + 3 hat(k) ) = 0 and overset(to)( r) ( lambda (i) + 5 hat(j) - hat(k) )=5 are perpendicular to each other, then the value of lambda is

if vectors 3 hat i - 2 hat j + m hat k and - 2 hat i+ hat j+ 4 hat k are perpendicular to each other , find the value of m

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

If the lines (x -1)/(-3) = (x - 2)/(2k) = (z - 3)/(2) and (x - 1)/(3k ) = (y -1)/(1) = (z - 6)/(-5) are perpendicular to each other, then the value of k is ,

If vectors vec(a) = 3 hat(i) + hat(j) - 2 hat(k) and vec(b) = hat(i) + lambda(j) - 3 hat (k) are perpendicular to each other , find the value of lambda .