Prove the identity.tan 2 u (1 + cos 2u) = 1 - cos 2u
What will be an ideal response?
tan 2 u (1 + cos 2u) = 
(1 + cos 2u) = 1 - cos 2u
Mathematics
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Find the area of the figure.
A. 23 ft2 B. 45 ft2 C. 90 ft2 D. 36 ft2
Mathematics
Solve the problem.In the weighted voting system 
, the total number of possible coalitions is
A. 32. B. 63. C. 23. D. 31. E. none of these
Mathematics
The shadow of a pole at 2 p.m. is 4 feet. The shadow of nearby 10-inch-tall squirrel is 4 inches. How tall is the pole?
A) 11ft B) 9ft C) 12ft D) 10ft E) 8ft
Mathematics
Solve the inequality. Graph the results.-8x + 11 ? -9x + 9
A. x < -8 
B. x ? -2
C. x > -8 
D. x ? -2 
Mathematics