Simplify the complex fraction.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: C
Mathematics
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Solve the problem.Find the extreme values of 
subject to 
and 
A. Maximum: none; minimum: 
at 
B. Maximum: none; minimum: 
at 
C. Maximum: none; minimum: 
at 
D. Maximum: none; minimum: 
at 
Mathematics
Use the inverse trig functions to express the angle in terms of the indicated unknown side. 
Express angle A in terms of c. Use one of the inverse trig functions tan-1, sin-1, or cos-1.
A. A = cos-1 
B. A = sin-1 
C. A = sin-1 
D. A = cos-1 
Mathematics
Solve the problem.For what values of x can we replace cos x by 
with an error of magnitude no greater than 
A. -0.376 ? x ? 0.376 B. -0.311 ? x ? 0.311 C. -0.589 ? x ? 0.589 D. -0.493 ? x ? 0.493
Mathematics
Divide.4
÷ 
A. - 1
B. - 
C. 1
D. 
Mathematics