Combine. Assume that all variables represent non-negative real numbers. - 2 + 4

A. 7x
B. 7x
C. 2x
D. 2x


Answer: B

Mathematics

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A.

B.

C.

D.

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Use the properties of the trigonometric functions to find the exact value of the expression. Do not use a calculator.tan 40° - 

A. 0 B. 40 C. 1 D. undefined

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Use a graphing utility to approximate to two decimal places any solutions on [0, 2?) graphically or numerically.-cot x + 2 csc x = 4

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