If the lines `(2x-1)/2=(3-y)/1=(z-1)3 and (xc+3)/2=(z+1)/p=(y+2)/5` are perpendicular to each other then p is equal to (A) 1 (B) -1 (C) 10 (D) `-7/5`

Show that the lines (x-5)/(7)=(y+2)/(-5)=(z)/(1) and quad (x)/(1)=(y)/(2)=(z)/(3) are perpendicular to each other.

Show that the line (x-5)/7=(y=2)/(-5)=z/1 and x/1 =y/2=z/3 are perpendicular to each other.

Show that the lines (x-5)/7=(y+2)/(-5)=z/1and x/1=y/2=z/3\ are perpendicular to each other.

If the lines x-2 = ay-3 =(2-z)/3 and bx +1 = y+4=z are perpendicular to each other, then 1/a + 1/b=

the lines (x+3)/(2)=(y)/(1)=(z-4)/(3) and (x)/(lambda)=(y-1)/(lambda+1)=(z)/(lambda+2) are perpendicular to each other.then lambda is equal to

Show that the lines (x+5)/(7) = (y +2)/(-5) = (z)/(1) and (x)/(1) = (y)/(2) = (z )/(3) are perpendicular to each other.

Show that the lines (x-5)/7=(y+2)/(-5)=z/1andx/1=y/z=z/3 are perpendicular to each other.

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 the lines (x+1)/(-3)-(y+2)/(2k)-(z-3)/(2) and (x-1)/(3k)-(y+5)/(1)-(z+6)/(7) are perpendicular, then the value of k is