exam
Maths Puzzle
Numerical Ability
in the diagram AB and CD intersect at E m<AED=7x-12 and m<CEB=3x+26. find the value of x.
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exam Other Question
Find the approximate increasing and decreasing intervals:
a) f(x) = x2 - 4x
x (x - 4) =0
x = 4
b) f(x)= 9x -x3 (x to the third power)
3(x-2)+3-(-x)=4