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: C
Mathematics
You might also like to view...
Find the length of the curve.y = 
, 0 ? x ? 
A. 1
B. 
C. 3
D. 9
Mathematics
Evaluate the improper integral or state that it is divergent. 
A. - 
ln 2
B. 
ln 5
C. ln 2
D. ln 4
Mathematics
Find the indicated partial sum for the sequence.37, 87, 137, . . . ; S10
A. -1880 B. -2435 C. 2620 D. 2435
Mathematics
Sketch the graph of the polynomial function.f(x) = x3 + 8x2 - x - 8
A. 
B. 
C. 
D. 
Mathematics