r(t) = (-3√√9-1²,4 sin (4t), 2 In (-3-2t)), then the domain of r is given by the interval Select one: [-3,-3/) (-3,31 None of them [-3,3] (-∞, -3]

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A: u=fx,y, x=gw and y=hw

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Q: Solution is incorrect. Please correct it.

A: dydx=6y18+9x2y18⇒dydx=6y18(1+9x2)⇒y18dy=6(1+9x2)dx

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A: We can solve this as follows:

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Q: 4. √₁² √9-x² dx

A: Follow the procedure given below.

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A: The given series,        ∑k=1∞k2+3k+22k2+1

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