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I need help with this problem please, and please answer all parts of the problem. Find the curve's unit tangent vector. Also, nd the length

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I need help with this problem please, and please answer all parts of the problem.

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Find the curve's unit tangent vector. Also, nd the length of the indicated portion of the curve. r(t) = (t sin t + cos t)i + (t cos 1 sin 0] 1/5552 The curve's unit tangent vector is Di+( j+(

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