Verify the identity.sin 4x = (4 sin x cos x)(2 cos2 x - 1)
What will be an ideal response?
sin(4x) = 2 sin 2x cos 2x = (4 sin x cos x)(2 cos2 x - 1).
Mathematics
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Sketch the graph of the quadratic function.f(x) = -(x - 2)2 + 4 
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Mathematics
Use the given values of the variable to make a vertical table of solutions for the equation.y - 7x = 0, y = -14, -7, 0, 14
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Mathematics
Divide. Express the quotient in lowest terms.
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D. 2y4z5
Mathematics
Simplify by combining like terms. Write the final answer with descending powers.4m2 - 8mn+ 3m2 + 6mn
A. 5mn B. 7m2 - 2mn C. 7m2 + 2mn D. 7m2
Mathematics