Complete the identity.sin (? + ?) sin (? - ?) = ?
A. cos2 ? + cos2 ?
B. sin2 ? - cos2 ?
C. sin2 ? - sin2 ?
D. cos2 ? - cos2 ?
Answer: D
Mathematics
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The figure below shows the graph of a function y = f(x). Use this graph to solve the problem.Sketch the graph of y = -f(x).
?
A. 
B. 
C. 
D. 
Mathematics
Indicate whether the expression is a polynomial or not a polynomial.8x
A. Polynomial B. Not a polynomial
Mathematics
Tell which set or sets the number belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.0
A. whole, real B. integers, real C. rational, real D. whole, integers, rational, real
Mathematics
Evaluate the expression.|-2| - |1|
A. 1 B. 3 C. -3 D. -1
Mathematics