Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = 
, 
? ? ? 2?Find cos 
.
A. 
B. 
C. - 
D. - 
Answer: D
Mathematics
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Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first five terms of the geometric sequence: 
, 
, 
, . . . .
A. 
B. 
C. 
D. 
Mathematics
Perform the operation and write the result in standard form.
a. 14 x 3 + 7 x + 4
b. 14 x 3 - 7 x + 10
c. 14 x 6 - 7 x + 10
d. 14 x 6 + 7 x + 4
e. -2 x 6 + 7 x + 4
Mathematics
Find the distance between the planes.
 Figure 3.png)
Mathematics
Write the fraction in lowest terms.
A. 
B. 
C. 
D. 
Mathematics