Simplify. Assume all variables and radicands represent nonnegative real numbers.-

A. - 
B. - n
C. - 
D. -n


Answer: C

Mathematics

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Use a half-angle formula to find the exact value of the expression.cos 

A.
B. - 
C. - 
D.

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Simplify.53 + 8 ? 255 ÷ 5

A. 93 B. 3111 C. 461 D. 305

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Write the complex number in rectangular form.3

A.  + i
B.  + i
C.  + i
D.  + i

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Answer True or False to the statement.Every integer is an irrational number.

A. True B. False

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