Establish the identity.
- 
= cos u - sin u
What will be an ideal response?
- 
= 
- 
= 
- 
= 
= 
= cos u - sin u
Mathematics
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Find the derivative of the function at the point p in the direction of a.f(x, y) = 4x2 - xy + 5y2, p = (-3, -5), a = i - 2j
A. 25
B. 
C. 15
D. 1
Mathematics
Solve. Then graph the solution.
< 0
A. (-?, -6)
B. (-?, ?)
C. (-6, 0)
D. ?
Mathematics
Use the RTSC Approach to solve the application.Three times the sum of some number plus 2 is equal to 5 times the number minus 8.
A. -7 B. -14 C. 14 D. 7
Mathematics
Find det A using the method of cofactors.A = 
A. -8 B. 248 C. 8 D. -152
Mathematics