Calculate the arc length of the indicated portion of the curve r(t).r(t) = (5t sin t + 5 cos t)i + (5 t cos t - 5 sin t)j ; -1 ? t ? 4
A. 75
B. 37.5
C. 42.5
D. 85
Answer: B
Mathematics
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A. -
B. - 4
C. 4
D.
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A. y = sin (x8 + C) B. y = x8 + C C. y = sin-1 (x8 + C) D. y = cos-1 (x8 + C)
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Simplify the radical. Assume that all variables represent positive real numbers.
A. 80
B. 4 +
C. 4
D.
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