exam Maths Puzzle Numerical Ability

Determine if the following lines are parallel, perpendicular or neither.

y-3x=5 3x+y=7

Read Solution (Total 0)

exam Other Question

OK I'm back with 2 questions here, I just had Surg. Monday so I'm really out of it but I tried to solve these none the less and I need some help please.

ymxm-y3xm
xxm2-y3xm
ym 1/2 ln(x^2+1)-4 ln 1/2-1/2[ln(x+2)+ln x]