Establish the identity.cot3x = cot x (csc2 x - 1)
What will be an ideal response?
cot3 x = cot x cot2 x = cot x (csc2 x - 1).
Mathematics
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Subtract and simplify. Write the answer as a mixed number as needed.13
- 7
A. 5
B. 6
C. 4
D. 5
Mathematics
Multiply.(
)(
)
A. 72
B. 17
C. 
D. 
Mathematics
Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.9 + 12 + 15 + 18 + . . . + 33
A. 
B. 
C. 
D. 
Mathematics
Write out the first three terms and the last term of the arithmetic sequence.
A. -5 + 25 - 75 + . . . - 1500 B. -5 - 10 - 15 - . . . - 300 C. -5 - 25 - 125 - . . . - 1500 D. -1 - 5 - 10 - . . . - 300
Mathematics