Calculate the derivative of the function. Then find the value of the derivative as specified.
? =1 if r = 
A. 
= 
; 
? =1
= 
B. 
= - 
; 
? =1
= - 
C. 
= - 
; 
? =1
= - 
D. 
= 
; 
? =1
= 
Answer: A
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Provide an appropriate response.Decide whether the expression is positive, negative, or zero. (-4)-17
A. Positive B. Negative C. Zero
Find T, N, and B for the given space curve.r(t) = (ln(cos t) + 2)i + 8j + (3 + t )k, -?/2 < t < ?/2
A. T = (sin t)i + (cos t)k; N = (cos t)i - (sin t)k; B = -j B. T = (sin t)i + (cos t)k; N = (cos t)i - (sin t)k; B = j C. T = (-sin t)i + (cos t)k; N = (-cos t)i - (sin t)k; B = -j D. T = (-sin t)i + (cos t)k; N = (-cos t)i - (sin t)k; B = j
Subtract.75.09 - (-25.95)
A. 49.14 B. 101.04 C. -49.14 D. -101.04
If possible, write a statement that can be deduced from the following statement. If impossible, write “no deduction possible.” If a triangle has a 90° angle, then it is a right triangle. The sum of ?A and ?B in ?ABC is 90°.
What will be an ideal response?