Use sum-to-product identities to rewrite the expression as a product.sin 
+ sin 
A. 2 sin 
cos 
B. 2 sin 
sin 
C. 2 cos 
sin 
D. 2 cos 
cos 
Answer: A
Mathematics
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Solve the problem.During his first year of college, John incurs the following expenses: 
on tuition, 
on books, 
on food, and 
on rent. If John earned 
during the year by working part-time, and the rest of the expenses
were paid by his parents, how much did his parents pay? A. $24,600 B. $6600 C. $5600 D. $4600
Mathematics
Find the value of the limit of the sequence defined by
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Mathematics
Find the interval of convergence of the series.
A. 0 ? x < 18 B. x < 10 C. 8 ? x < 10 D. 8 < x < 10
Mathematics
Write the fraction in simplest form using the method of your choice.
A. 
B. 
C. 
D. 
Mathematics