Find 
. Write your answer in standard polar form with the argument in radians.z1 = 
, z2 = 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Graph the curve over the given interval together with its tangent at the given value of x. Graph the tangent with a dashed line.y = cot(x), -2? ? x ? 2?, x = 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Starting at middle E with a frequency of 328 cps, find the frequency of the note 36 half-steps above middle E.
A. 2660 B. 2619 C. 2624 D. 2588
Mathematics
Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Mathematics
Determine if the function is even, odd, or neither.f(x) = -5x3 + 9x
A. Neither B. Even C. Odd
Mathematics