Determine if the function is even, odd, or neither.f(t) = cos 2t
A. Even
B. Odd
C. Neither
Answer: A
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Find the indicated derivative for the given vector-valued function .Find Dtr(t) for r(t) = (4et2)i - (3t)j + t2k.
A. Dtr(t) = (8tet2)i -3j + 2k. B. Dtr(t) = (8tet2)i + 2tk. C. Dtr(t) = (8et2)i - 3j + 2tk. D. Dtr(t) = (8tet2)i - 3j + 2tk.
Solve the problem.Consider the region R bounded by the graph of f(x) = 
on the interval [0, 5]. Find the volume of the solid formed when R is revolved about the x-axis.
A. 
B. 
+ 45
C. 
D. 
Solve the problem.In an arithmetic sequence with first term P0 and common difference d, the sum of the first 400 terms is given by
A. 100(2P0 + 399d). B. 200(2P0 + 400d). C. 200(2P0 + 200d). D. 100(2P0 + 200d). E. none of these
Use a sum-to-product identity to rewrite the expression.sin 
+ sin 
A. 2cos 
cos 
B. 2sin 
sin 
C. cos 
cos 
D. 2sin 
cos 