Evaluate the function at the given values of the variable.f(x) = x - 1
a. f(5)
b. f(2)
A. -5, -2
B. 4, 1
C. 5, 2
D. 6, 3
Answer: B
Mathematics
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Use sum-to-product formulas to rewrite the expression as a product.cos 9? - cos 3?
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