Compute r''(t).r(t) = (2 cos t)i + (6 sin t)j
A. r''(t) = (-2 cos t)i + (-6 sin t)j
B. r''(t) = (-2 sin t)i + (-6 cos t)j
C. r''(t) = (2 sin t)i + (6 cos t)j
D. r''(t) = (2 cos t)i + (6 sin t)j
Answer: A
Mathematics
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A. -9
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Provide an appropriate response.Solve the inequality: (x + 2)(x - 3)(x + 4) < 0
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A. 
+ 
i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
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