Verify that the equation is an identity.sin(x + y) - sin(x - y) = 2 cos x sin y
What will be an ideal response?
sin (x + y) - sin (x - y) = sin x cos y + cos x sin y - sin x cos y + cos x sin y = 2 cos x sin y.
Mathematics
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Determine whether the given function satisfies Laplace's equation.f(x, y, z) = 9x + 9y3z2
A. Yes B. No
Mathematics
A point is located five units below the x-axis and the coordinates of the point are equal. Find the coordinates of the point. ?
A. (-5, 5) B. (-5, 0) C. (5, -5) D. (-5, -5) E. (5, 5)
Mathematics
Solve the problem.Given f(x) = 
, find f
.
A. - 9
B. - 1
C. 9
D. - 
Mathematics
Perform the indicated operation where possible.
- 
A. 
B. 
C. 
D. 
Mathematics