exam Maths Puzzle Numerical Ability

Hi, Can you please help solve these two problems PLEASE!! I lost power in Texas due to the storm and had a hard time coming back. Today is my last day in the class and I need to

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exam Other Question

Evaluate without a calculator:
A) sin{ Arctan [(-5/13)]}

B)cos{ Arcsin[(-3/4)]}

C)Arccos[(-square root of 3/2)]

D) tan { Arcsin[(-3/4)]} Given g(x) = 3x^2 - x + 7, find [g(a + h) - g(a)]/h.

a. 6a + 3h + 1
b. 6a + 3h - 1
c. 6a + 3h + 2
d. 6a + 3h -2
e. none of these