Select the right expression for the following sum and prove that your statement is true for all natural numbers n.
?

?

A.
B. ?
C. ?
D. ?
E. ?


Answer: E

Mathematics

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Solve the absolute value inequality. Write the solution set using interval notation. < 7

A. (-11, 3) B. (-3, 11) C. (-?, -3) ? (11, ?) D. (-?, -11) ? (3, ?)

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A.

B.

C.

D.

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