Evaluate the integral.Use the formula
to evaluate the integral. 
A. x cos-1 x + sin(cos-1 x) + C
B. x cos-1 x - x + C
C. x cos-1 x - sin x + C
D. x cos-1 x - sin(cos-1 x) + C
Answer: D
Mathematics
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A. 49x2 + 16y2 B. 7x2 + 16y2 C. 7x2 + 56xy + 16y2 D. 49x2 + 56xy + 16y2
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Graph.x2 + 9y2 = 9
A. 
B. 
C. 
D. 
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Provide an appropriate response.Solve the system of equations using the addition method: 2x - y = 1 3x - y = 0
Fill in the blank(s) with the appropriate word(s).
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Find the logarithm. Give an approximation to four decimal places.ln 0.981
A. 0.0192 B. 0.0083 C. -0.0083 D. -0.0192
Mathematics