Establish the identity.cot ( x + y) cot (x - y) = 
What will be an ideal response?
cot ( x + y) cot (x - y) = 
? 
= 
.
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Provide an appropriate response._________ loans differ from installment loans in that you are not required to pay off your balance in any set period of time.
A. Mortgage B. Auto C. Credit card D. None of the above
Find the exact value under the given conditions.cos ? = 
, 0 < ? < 
; sin ? = - 
, - 
< ? < 0Find tan(? + ?).
A. 
B. 
C. 
D. 
Which research strategy involves observing naturally occurring behavior without intervening in the situation?
A. case study method B. ethnography C. naturalistic observation D. experimental research
Researchers conduct an experiment in which one group is exposed to Treatment A and the other group is exposed to Treatment B. What are the treatments?
A. independent variable B. dependent variable C. control group D. treatment group