Find the integral using an appropriate trigonometric substitution. 
What will be an ideal response?
Mathematics
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Evaluate the improper integral.
A. 
B. 
C. 
D. 
Mathematics
Use a calculator to find the approximate value of the composition. Round your answer to four decimal places. The expression may be undefined.sin (arctan (2))
A. 0.8944 B. 0 C. Undefined D. -0.8172
Mathematics
Find the real solutions, if any, of the equation. Use the quadratic formula.2x2 - x + 4 = 0
A. {
, 
}
B. {
, 
}
C. {
, 
}
D. no real solution
Mathematics
Perform the indicated operation and express in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Mathematics