Evaluate the following expression. (x ? ?/2+?n, where n is a whole number)
?
tan7x sec2x - tan7x
?

A. 9 tan9x
B. tan2x
C. tan9x
D. 7 tan7x
E. tan7x

Answer: C

Mathematics

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Simplify by factoring out the given factor.(q + 6)-3/17  + (q + 6)-1/17  + (q + 6) 1/17; (q + 6)-3/17

A. (q + 6)-3/17 [1 + (q + 6) 2/17 + (q + 6)4/17] B. (q + 6)-3/17 [1 + (q + 6)1/17 + (q + 6)3/17] C. (q + 6)-3/17 [1 + (q + 6)4/17 + (q + 6)6/17] D. (q + 6)-3/17 [1 + (q + 6) -2/17 + (q + 6) -4/17]

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Provide an appropriate response.Rewrite as a logarithmic equation: 5-2 = 

A. log 5 = -2
B. log5 -2 = 
C. log5  = -2
D. log-2   = 5

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Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.-3, 3, 9, 15, 21, . . .

A. an = 6n - 9; a20 = 111 B. an = 9n - 6; a20 = 174 C. an = 6n - 3; a20 = 117 D. an = 9n - 3; a20 = 177

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Mathematics

Distribute. Write the answer in descending order.-1(-4x + 5)

A. -4x + 5 B. -4x - 5 C. 4x + 5 D. 4x - 5

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Mathematics