Find all the complex roots. Write the answer in the indicated form.The complex square roots of i (rectangular form)
A. -i, i
B. 
+ 
i, - 
- 
i
C. -1, 1
D. 
- 
i, - 
+ 
i
Answer: B
Mathematics
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Find the extreme values of the function subject to the given constraint.
A. Maximum: 1 at 
minimum: -1 at 
B. Maximum: 8 at 
minimum: -8 at 
C. Maximum: 1 at 
minimum: -1 at 
D. Maximum: 9 at 
minimum: -9 at 
Mathematics
Solve.logx64 = 2
A. x = -8
B. x = 
C. x = 8
D. x = -2
Mathematics
Use a double-angle formula to rewrite the expression. ? 10 cos2 x - 5 ?
A. 5 cos x B. ?cos 5x C. ?10 cos 2x D. ?10 cos x E. ?5 cos 2x
Mathematics
Graph the level curves in the first quadrant of the xy-plane for the given function at heights of 
and 
2x + 2y - 2z = 4
A. 
B. 
C. 
D. 
Mathematics