Find the exact value of the expression.cot-1
A. - 
B. - 
C. 
D. 
Answer: D
Mathematics
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Divide and simplify.
÷ (5m)
A. 
B. 
C. 0
D. 
Mathematics
Factor the expression completely. If the polynomial is prime, state this as your answer.12a2 - 147b2
A. 3(2a - 7b)2 B. 3(2a + 7b)2 C. 3(2a + 7b)(2a - 7b) D. prime
Mathematics
Find fraction notation.1.68686868 . . .
A. 
B. 
C. 
D. 
Mathematics
Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.50°
A. 410°; -310° B. 410°; -130° C. 140°; -40° D. 230°; -130°
Mathematics