Find the the value of `p` if the straight lines `3x+7y-1=0` and `7x-py+3=0` are mutually perpendicular.

Find the value of p, if the straight lines 3x+7y-1=0 and 7x-py+3=0 are mutually perpendicular.

Find the value of p if the straight lines 3x + 7 y - 1 = 0 and 7 x - py + 3 = 0 are mutually perpendicular .

Find k if lines 5x - ky- 7=0 and 2x + 3y + 5 =0 are mutually perpendicular.

The value of k if the straight lines 3x + 6y + 7 = 0 and 2x + ky = 5 are perpendicular is ……………………

Find the value of p if the straight lines x+p=0, y+2=0, 3x+2y+6=0 are concurrent.

If the straight lines 2x+ 3y -3=0 and x+ky +7 =0 are perpendicular, then the value of k is

If the straight lines 2x+ 3y -3=0 and x+ky +7 =0 are perpendicular, then the value of k is

Find the value of 'p' if the lines, 5x-3y+2=0 and 6x-py+7=0 are perpendicular to each other. Hence, find the equation of a line passing through (-2,-1) and parallel to 6x-py+7=0 .

If the straight lines 2x+3y-3=0 and x+ky+7=0 are perpendicular, then the value of k is