Use the given information to find the exact value.cos A = 
, 0 < A < 
; sin C = 
, 
< C < ?
Find cos (A + C).
A. 
B. - 
C. 
D. - 
Answer: D
Mathematics
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Use power series operations to find the Taylor series at x = 0 for the given function.cos2(9x)
A. 
+
B. 
+
C. 
+
D. 
+
Mathematics
Provide an appropriate response.Solve the following questions algebraically: 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Determine the amplitude, range, and period of the function and sketch its graph.y = sin (x + ?)
A. amplitude: 1; range: [-1, 1]; period: 2
B. amplitude: 1; range: [2, 4]; period: 2?
C. amplitude: 1; range: [-1, 1]; period: 2?
D. amplitude: 1; range: [-1, 1]; period: 2?
Mathematics
Use the Factor Theorem to determine whether x - c is a factor of f(x).f(x) = x4 + 9x3 + 8x2 + 66x - 54; x - 9
A. Yes B. No
Mathematics