Verify the identity.sin 4? = 2 sin2? cos2?

What will be an ideal response?


sin 4? = sin [2(2?)] = 2 sin2? cos2?.

Mathematics

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Simplify the expression.8x + 1 + 9x + 12

A. 17x + 13 B. 17x C. 34x D. 72x + 13

Mathematics

A pasture is four times as long as it is wide. Its area is 230,400ft² . How long is the pasture?

What will be an ideal response?

Mathematics

Solve the problem.A spring with a spring constant of 6 and a 1-unit mass attached to it is stretched  and released. What is the equation for the resulting oscillatory motion?

A. s = 3 sin t
B. s = 6 sin t
C. s = 3 sin t
D. s =  sin t

Mathematics

Find the absolute maximum and absolute minimum values of the function, if they exist, on the indicated interval.f(x) = x4 - 32x2 + 1; [-5, 5]

A. Absolute maximum: -255 B. Absolute maximum: 1, absolute minimum: -255 C. Absolute minimum: 0 D. Absolute maximum: 0, absolute minimum: -255

Mathematics