exam
Maths Puzzle
Numerical Ability
Please Please Help!
Find all the points of inflection (concavity)
f(x)= x^4-18x^2+4
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exam Other Question
A piece of wire 24 in long is bent into the shape of rectanlge having width X and Length y. Express the area A of the rectangle as a function of X.
Solve. (x - 5)^2 = 7