Simplify the complex fraction.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. v (ft/sec)
What is the body's acceleration when t = 8 sec?
A. 1 ft/sec2 B. 0 ft/sec2 C. 1.67 ft/sec2 D. -2 ft/sec2
Mathematics
Find the unit tangent vector of the given curve.r(t) = (5 + 11t2)i + (9 + 2t2)j + (8 + 10t2)k
A. T = 
i + 
j + 
k
B. T = 
i + 
j + 
k
C. T = 
i + 
j + 
k
D. T = 11i + 2j + 10k
Mathematics
Calculate.2.5 ? (-2.01)
A. 4.51 B. 0.49 C. -5.025 D. 4.61
Mathematics
Verify the identity.
- 
= cos x - sin x
What will be an ideal response?
Mathematics