Calculate the derivative.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: C
Mathematics
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (8cos3 4t)j + (8sin3 4t)k; 
? ? t ? 
?
A. 12 B. 4 C. 24 D. 0
Mathematics
Add the given vectors by using the trigonometric functions and the Pythagorean theorem.A = 26.1, ? = 7.39 °B = 22.6, ? = 7.29 °C = 18.1, ? = 2.27 °
A. R = 66.8, ? = 84 ° B. R = 66.8, ? = 5.97 ° C. R = 66.8, ? = 186 ° D. R = 8.6, ? = 5.97 °
Mathematics
Find the coordinate vector [x]B of the vector x relative to the given basis B.b1 = 
, b2 = 
, x = 
, and B = 
A. 
B. 
C. 
D. 
Mathematics
Determine whether f is continuous at c.f(x) = 
;c = 0
A. not continuous B. continuous
Mathematics