Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (sin x)cos x
A. cos x cot x - ln (sin x)
B. cos x ln ( sin x)
C. (sin x)cos x(cos x cot x - sin x ln (sin x))
D. cos x cot x - sin x ln(sin x)
Answer: C
Mathematics
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Round off the approximate number as indicated.2090 2 significant digits
A. 2000 B. 2100 C. 290 D. 2200
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For the given slope of line l1, (a) find the slope of line a l2 parallel to l1, and (b) find the slope of a line l3 perpendicular to l1.m = 0
A. (a) 0; (b) -1
B. (a) 0; (b) undefined
C. (a) 
; (b) -9
D. (a) undefined; (b) 0
Mathematics
Find the product AB.A = 
, B = 
A. 
B. 
C. 
D. 
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Determine whether or not the function is one-to-one.{(1, 27), (2, 40), (3, 55), (4, 55), (5, 21)}
A. Yes B. No
Mathematics