Find the derivative.y = 5x2 - 2.1x
A. 
= 10x2 - 2.1
B. 
= 10x - 2.1
C. 
= 5x2 - 2.1
D. 
= 5x - 2.1
Answer: B
Mathematics
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Perform the row operation(s) on the given augmented matrix.R2 = -2r2 + r1
A. 
B. 
C. 
D. 
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Find all solutions in the interval [0, 2?).sin (cos x) = 0
A. 
, ?
B. 0, 
C. 
, 
D. ?, 
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