Decide whether the expression is or is not an identity.
= 1 - cos x
A. Identity
B. Not an identity
Answer: B
Mathematics
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Compute. 
What will be an ideal response?
Mathematics
Add or subtract by first simplifying each radical and then combining any like radicals. Assume that all variables represent positive numbers.
+ 
A. 77
B. -7
C. 11
D. 11
Mathematics
Solve. Remember to insert units when writing your answer.A farmer plans to use 26.4 meters of leftover fencing material to enclose a square garden plot for her daughter. How long will each side of the garden be?
A. 3.3 m B. 13.2 m C. 6.6 m D. 5.28 m
Mathematics
Find f'(x).f(x) = 8ex + 4 ln x3
A. 
B. 
C. 
D. 
Mathematics