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May 24, 2015

Homework Help: Math Trig

Posted by yeahyeah on Saturday, July 14, 2012 at 6:34am.

13. What is the equation of a cosine function with amplitude 3, transition point (−1, 1), and period p?

A. y = p cos [3(x − 1)] − 1
B. y = 3 cos [2(x − 1)] + 1
C. y = 3 cos [p (x + 1)] − 1
D. y = 3 cos [2(x + 1)] + 1


16. What is the transition point of y = 100 tan (6x) + 4?

A. (0, −4)
B. (6, −4)
C. (0, 4)
D. (6, 4)

20. cot–1 −0.57735 is approximately

A. −1.05.
B. 2.09.
C. −0.65.
D. 2.62.

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