Evaluate the expression without using a calculator.
A. - 
B. 
C. 
D. 3
Answer: C
Mathematics
You might also like to view...
Polar coordinates of a point are given. Find the rectangular coordinates of the point.(4, 90°)
A. (-4, 0) B. (0, -4) C. (0, 4) D. (4, 0)
Mathematics
Find the exact value by using a sum or difference identity.cos 
A. 0
B. 
C. 
D. - 
Mathematics
Solve the problem.A rectangular board is 13 by 18 units. The foci of an ellipse are located to produce the largest area. A string is connected to the foci and pulled taut by a pencil in order to draw the ellipse. Find the length of the string.
A. 13 B. 36 C. 26 D. 18
Mathematics
Perform the indicated operation. Simplify the result.
- 
A. 
B. 
C. 
D. 
Mathematics