Solve the problem.The function 
occurs frequently in the descriptions of physical processes. It is often present as a damping factor. For example, a sinusoidally varying quantity, such as 
might be damped with the passing of time, t, according to the relation 
Write three terms of the series expansion for this function, taking b = 0.4 and a = 3.
A. 1 - 1.6t + 2.84t2 + ...
B. 1 - 0.4t - 4.42t2 + ...
C. 1 + 0.4t - 4.42t2 + ...
D. 1 + 1.6t - 2.84t2 + ...
Answer: B
Mathematics
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Sketch the given surface.x2 + y2 = 9
What will be an ideal response?
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Change the given angle to an equal angle expressed in radians to three significant digits.-155.6°
A. -2.84 rad B. -2.58 rad C. -2.72 rad D. -5.82 rad
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.
- 4
- 2
A. -6x
B. -11x
C. -6x
D. -11x
Mathematics
Factor the trinomial by grouping, or state that the trinomial is prime.9a2 - 6ab - 8b2
A. prime B. (3a + 4b)(3a - 2b) C. (9a - 4b)(a + 2b) D. (3a - 4b)(3a + 2b)
Mathematics