book Maths Puzzle Numerical Ability

What is the quotient of -63/215?

Read Solution (Total 0)

book Other Question

Demonstrate that 2+6i is a solution to the equation x^2-40x+40=0 Hi! I need help with two problems. (^ means exponent follows)

2e^2x = 5^x+1

and...

log(x+1)-log(x)=2

thanks!