Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.cot 
A. -1
B.
C. 
D. 1
Answer: D
Mathematics
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Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.
A. 15
B. 5
C. 5
D. 16
Mathematics
Find the indicated matrix.Let A = 
and B = 
. Find A + B.
A. 
B. 
C. 
D. 
Mathematics
Write the first four terms of the binomial expansion.(m2 + 4)9
A. m18 + 36m16 + 576m14 + 10,752m12 B. m18 + 36m16 + 1152m14 + 5376m12 C. m18 + 36m16 + 1152m14 + 10,752m12 D. m18 + 36m16 + 576m14 + 5376m12
Mathematics
Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.(-3p)8 (-3p)10
A. 318p18 B. 9p18 C. -318p18 D. 318p
Mathematics