Establish the 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.
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Find mADC ? in the isosceles trapezoid below.
Give the equation of the oblique asymptote, if any, of the function.f(x) = 
A. no oblique asymptote B. y = 0 C. y = -3x2 - 5x + 3 D. y = -3x + 3
State the domain of the given function.y = 
A. all real numbers except 2 B. (-?, ?) C. 2 D. (2, ?)
Use percents, percent equations, and/or percent proportions to solve the application.There are approximately 1,111,529 registered nurses in a given country. It is expected that this number will grow to 1,544,091 over the next three years. What is the percent increase? Round to the nearest tenth of a percent.
A. 2.8% B. 3.9% C. 28.0% D. 38.9%