Write the product as a sum or difference containing only sines or cosines.sin(7?) cos(3?)
A. sin cos(21?2)
B. 
[sin(10?) + sin(4?)]
C. 
[sin(10?) + cos(4?)]
D. 
[cos(10?) - cos(4?)]
Answer: B
Mathematics
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Graph the ellipse. Label the x- and y-intercepts.
+ 
= 1
A. no x-intercepts;
y-intercepts: (0, 5), (0, -5)
B. x-intercepts: (-2, 0), (2, 0);
no y-intercepts
C. x-intercepts: (-2, 0), (2, 0);
y-intercepts: (0, 5), (0, -5)
D. x-intercepts: (-5, 0), (5, 0);
y-intercepts: (0, 2), (0, -2)
Mathematics
Solve the inequality.(x + 5)(x - 1) > 0
A. (-?, -5) B. (-5, 1) C. (-?, -5) or (1, ?) D. (1, ?)
Mathematics
Factor completely. If the polynomial cannot be factored, write "prime."2x2 + 2xy + y2
A. 2(x + y)2 B. (2x + y)(x + y) C. (2x + y)(x - y) D. Prime
Mathematics
Rewrite using a negative exponent.
A. 14-t B. 14t C. t-14 D. t14
Mathematics