The angle between the lines `(x-2)/(2)=(y-1)/(7)=(z+3)/(-3) " and " (x+2)/(-1) =(y-4)/(2)=(z-5)/(4)` is

Find the angle between the lines (x-1)/(2)=(y-2)/(3)=(z-3)/(4) and (x-2)/(3)=(y-4)/(4)=(z-5)/(5)

Find the angle between the pair of lines (x-2)/2=(y-1)/5=(z+3)/(-3) and (x+2)/(-1)=(y-4)/8=(z-5)/4

Find the angle between the lines (x-7)/(2)=(y-6)/(3)=(z+2)/(-4) and (2-x)/(-1)=(y-9)/(5)=(z-12)/(4) .

Find the angle between the following pair of lines (x-7)/(2)=(y+5)/(7)=(z+2)/(-3)" and "(x+2)/(-1)=(y-3)/(2)=(z-5)/(4)

Find the angle between the following pairs of lines : (x-2)/2=(y-1)/5=(z+3)/(-3) " and " (x+2)/(-1)=(y-4)/8=(z-5)/4 .

Find the angles between the lines (x-2)/2=(y-1)/5=(z+3)/-3 and (x+2)/-1=(y-4)/8=(z-5)/4

The angle between the straight lines (x+1)/(2)=(y-2)/(5)=(z+3)/(4) and (x-1)/(1)=(y+2)/(2)=(z-3)/(-3) is

The angle between the straight lines (x+1)/(2)=(y-2)/(5)=(z+3)/(4) and (x-1)/(1)=(y+2)/(2)=(z-3)/(-3) is

The angle between the lines (x-7)/(1)=(y+3)/(-5)=(z)/(3) and (2-x)/(-7)=(y)/(2)=(z+5)/(1) is equal to