3 years ago

X = cos(2t) and y = sin(2t) Find the second derivative

1 answer:

3 0

Dy/dx = (dy/dt) / (dx/dt)
dy/dt = 2cos(2t)
dx/dt = -2sin(2t)

dy/dx = 2cos(2t)/-2sin(2t) = -cot(2t)

d^y/dx^2 = d(-1/tan(2t))/dx = (tan(2t) * 0 - (-1)*2sec^2(2t))/tan^2(2t) = 2sec^2(2t)/tan^2(2t) = 2csc^2 (2t)

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Answer:

$80.59

Step-by-step explanation:

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3 years ago

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Your fixed expenses are $1,328.90/month and you saved 4 months' worth in an emergency fund. You place half in a 45-day CD at a 4

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You saved 4 months
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2 years ago

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One cubic foot of sand should be $11.25. You can find this answer by dividing the first price by 3, because there are 3 feet in a yard.

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3 years ago

12,000 g____1.2 kg A greater than B less than C equal to

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12000 g would be equal to 12 kg not 1.2 kg so the answer has to be A) greater than.

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