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 - 