Verify the identity.cot(? + ?) cot(? - ?) = 
What will be an ideal response?
cot ( ? + ?) cot (? - ?) = 
? 
= 
.
You might also like to view...
Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.(9x6y-18)1/2
A. 3x3y9
B. 
C. 
D. 
A mail truck must deliver packages to 5 different homes (A, B, C, D, and E). The trip must start and end at A. The graph below shows the distances (in miles) between locations. We want to minimize the total distance traveled.
Using both the cheapest-link and the repetitive nearest-neighbor algorithm, the length of the shortest trip we can find (without using brute force) is:
A. 57 miles. B. 28 miles. C. 58 miles. D. 68 miles. E. none of these
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = 
, 0 < ? < 
Find sin(2?).
A. 
B. 
C. 
D. 
Find the first five terms of the arithmetic sequence.an = 4(2n - 3)
A. -12, -4, 4, 12, 20 B. -1, 1, 3, 5, 7 C. -4, 4, 12, 20, 28 D. -4, -8, -12, -16, -20