Find the partial derivative.Find fx(4, -4) when f(x,y) = 7x2 - 9xy.
A. -20
B. 20
C. -32
D. 92
Answer: D
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Evaluate the integral.x dx
A. x cos-1x - 2 + C
B. x cos-1x - + C
C. x cos-1x - + C
D. x cos-1x + + C
Find the exact values of the remaining trigonometric functions of ? from the given information.cos ? = , sin ? < 0
A. sin ? = -
cos ? =
tan ? = -
csc ? = -
sec ? =
cot ? = -
B. sin ? = -
cos ? =
tan ? = -
csc ? = -
sec ? =
cot ? = -
C. sin ? = -
cos ? =
tan ? = -
csc ? = -
sec ? =
cot ? = -
D. sin ? =
cos ? =
tan ? = -
csc ? =
sec ? = -
cot ? = -
Use the boundedness theorem to determine whether the statement is true or false.The polynomial f(x) = x4 - x3 + 2x2 - 4x - 10 has no real zero less than -1.
A. True B. False
Divide using synthetic division.(5x3 - 2x2 - 7x - 14) ÷ (x - 2)
A. 5x2 + 8x - 23 -
B. 5x2 - 12x - 31 -
C. 5x2 + 8x + 9 +
D. 5x2 + 8x + 9 -