Express the sum or difference as a product of sines and/or cosines.sin 
+ sin 
A. 2 sin (5?)
B. 2 cos (5?) sin ?
C. 2 sin 
sin ?
D. 2 sin 
cos ?
Answer: D
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Decide whether the statement makes sense. Explain your reasoning.Gabe said "For years there has been no money in the Social Security trust fund, just a bunch of IOUs". Kim said "That's impossible, if that were true, how come the government has been able to pay out Social Security benefits all these years?" Who is making more sense?
What will be an ideal response?
Establish the identity.cot x sec4 x = cot x + 2 tan x + tan3 x
What will be an ideal response?
What did Freud believe that the ego does?
A. operates on a completely unconscious level B. acts as a buffer between the desires of the id and the constraints of the real world C. was under the direct control of the id D. is the seat of conscience, or ethical principles of right and wrong
Roger believes his infant daughter is going through very distinct stages of development and is suddenly, upon turning six months old, able to do far more than she could at 5½ months. This perspective is consistent with which type of approach to development?
A. continuous change B. discontinuous change C. sensitive periods D. nurture