Prove the identity.
= sin ? tan ?
What will be an ideal response?
Answers may vary. One possible solution is:
= 
= 
? 
= 
= 
= sin ? tan ?.
Mathematics
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Find at least three nonzero terms [including a0, at least two cosine terms (if they are not all zero) and at least two sine terms (if they are not all zero)] of the Fourier series for the given function.f(x) = 
A. f(x) = 7 - 
B. f(x) = -7 + 
C. f(x) = -7 - 
D. f(x) = -7 - 
Mathematics
Solve the problems.Video games made up 47.8% of the total revenue for a small specialty store. Write this percent as a decimal.
A. 47.8 B. 0.0478 C. 4.78 D. 0.478
Mathematics
Match the equation with its graph.y = 
? 3x
A. 
B. 
C. 
D. 
Mathematics
Add or subtract. Express the answer as a mixed number.1
+ 2
+ 10
A. 15
B. 14
C. 14
D. 13
Mathematics