exam Maths Puzzle Numerical Ability

Find the domain and range of the inverse of the given function.

f(x)=x^2-7; x>/= 0

I believe the answer is.. Domain and range are all real numbers? Am I correct?

Read Solution (Total 0)

exam Other Question

Mercury, Venus, and Earth revolve around the sun once every 3,7, and 12 months, respectively. If the three plants are in a straight line, what is the smallest number of months that pass before they line up agian? Show that the number(square root of 2 with exponent of square root of 2)with exponent of square root of 2 is a rational number even though it might look irrational. What familiar number does it equal?