exam Maths Puzzle Numerical Ability

Umm In probability I need Help On Basically The Whole Method On algebra Is There Any6 way i can help me

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exam Other Question

Let h be the function defined by h(x)=x2(2 means squared)-1, where the domain is the set of real numbers.
a. find h(2)
b. find h(-2)
c. if h(t) = 15 what ar the possible values of t?
d. find h(7.32).

thanks, can someone help me name TWO angles that are coterminal with an angle of 200 degree??