Solve the problem.Given tan ? = 2, use trigonometric identities to find the exact value of sec 
.
A. 
B. 2
C. 
D. 
Answer: A
Mathematics
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = cot(3x - 8)
A. y = cot u; u = 3x - 8; 
= - 3 cot(3x - 8) csc(3x - 8)
B. y = cot u; u = 3x - 8; 
= - csc2(3x - 8)
C. y = 3u - 8; u = cot x; 
= - 3 cot x csc2 x
D. y = cot u; u = 3x - 8; 
= - 3 csc2(3x - 8)
Mathematics
Subtract and write the result in lowest terms.
- 
A. 
B. - 
C. - 
D. -4
Mathematics
A pair of similar triangles is shown. Find the measure of the segment marked with the letter x.
A. x = 12 B. x = 7 C. x = 21 D. x = 28
Mathematics
Find the first five terms of the sequence defined by the given general term.an = n- 5
A. 4, 3, 2, 1, 0 B. 4, 3, -2, -1, 0 C. -5, -4, -3, -2, -1 D. -4, -3, -2, -1, 0
Mathematics