Establish the identity.cot2x = (csc x - 1)(csc x + 1)
What will be an ideal response?
cot2 x = csc2 x - 1 = (csc x - 1)(csc x + 1).
Mathematics
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Express the vector as a product of its length and direction.2j + 
k
A. 
B. 
C. 
D. 
(j + k)
Mathematics
Solve the problem. Round your answer, if appropriate.The volume of a sphere is increasing at a rate of 6 cm3/sec. Find the rate of change of its surface area when its volume is 
cm3. (Do not round your answer.)
A. 
cm2/sec
B. 12? cm2/sec
C. 3 cm2/sec
D. 2 cm2/sec
Mathematics
Perform the indicated operations.-2(3 - 6)
A. -6 B. -18 C. 6 D. -12
Mathematics
Rewrite the expression as a sum, difference, or multiple of logarithms.log x2(5x - 4)5
A. 2 log x + 5 log 5x - 5 log 4 B. 2 log x + 5 log(5x - 4) C. 7 log(6x - 4) D. 2 log x - 5 log(5x - 4)
Mathematics