Find the length of the missing side in the right triangle.

A. 2
B. 4
C. 4
D. 2

Answer: A

Mathematics

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Evaluate the integral.

A.  ln 2
B. ln 
C.  ln 
D.

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Mathematics

Solve the problem.If tan ? = x + 1 and tan ? = x - 1, show that cot(? + ?) = 

What will be an ideal response?

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Mathematics

Factor and simplify the expression.sec4x - 2 sec2x tan2x + tan4x

A. sec2x (1 + tan2x) B. 2 C. sec2x + tan2x D. 1

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Mathematics

Use the Negative Exponent Rules to simplify. Write the answer with positive exponents. All variables are nonzero.8x-4

A. -8x
B.
C. -32x
D.

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Mathematics