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. (sin x)cos x(cos x cot x - sin x ln (sin x))
C. cos x ln ( sin x)
D. cos x cot x - sin x ln(sin x)
Answer: B
Mathematics
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Find the total cost.1677 square yards of carpetat $19 per square yard
A. $1658 B. $1696 C. $31,863 D. $88
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Give the domain and range of the relation.
A. domain: (-?, ?); range: (-?, ?) B. domain: (-?, 0) ? (0, ?); range: (-?, -3) ? (-3, ?) C. domain: (-?, 0] ? [0, ?); range: (-?, -3] ? [-3, ?) D. domain: (-?, -3) ? (-3, ?); range: (-?, 0) ? (0, ?)
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Identify the row operation that produces the resulting matrix.
? 
A. (-1)R2 ? R2 B. R1 + (-1)R2 ? R2 C. (-1)R1 + R2 ? R2 D. R1 + (-1)R2 ? R1
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Write the power of i as i, -1, -i, or 1.i3
A. -i B. 1 C. -1 D. i
Mathematics