exam
Maths Puzzle
Numerical Ability
when there is a question like 34 over 5a = how do i work that out?
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exam Other Question
Please help to simplify
4i^7 - the square root of -5 * the square root of -5 + the square root of 7 * the square root of -7 - the square root of -16
please help to expand
(x^-1/4 - y^2/3)^2