Compute r''(t).r(t) = (8 cos t)i + (7 sin t)j
A. r''(t) = (8 sin t)i + (7 cos t)j
B. r''(t) = (-8 cos t)i + (-7 sin t)j
C. r''(t) = (-8 sin t)i + (-7 cos t)j
D. r''(t) = (8 cos t)i + (7 sin t)j
Answer: B
Mathematics
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