Establish the identity.
- 
= cos u - sin u
What will be an ideal response?
- 
= 
- 
= 
- 
= 
= 
= cos u - sin u
Mathematics
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Solve the problem.If f(x) = -7x + 1 and g(x) = 9x2 - 4x - 7, find g(f(-3)).
A. -601 B. 155 C. 4261 D. 103
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Find the location of the indicated absolute extremum for the function.Maximum
A. No maximum B. x = 5 C. x = 3 D. x = 0
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Collect like terms and write in descending order.7x7 + 3x7 - 8x7
A. -168x7 B. 2x21 C. Can't be simplified D. 2x7
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Use logarithmic differentiation to find the derivative of y.y = 
A. 
(ln x + ln(x - 6) - ln(x3 + 9))
B. 3
C. 
D. 
+ 
- 
Mathematics