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Popular >

expand (n-2(-1)^n)/n

Solution

expand

\frac{n - 2 ( - 1 ) ^{n}}{n}

Solution

1 - \frac{2 ( - 1 ) ^{n}}{n}

Solution steps

\frac{n - 2 ( - 1 ) ^{n}}{n}

Apply the fraction rule:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{n - 2 ( - 1 ) ^{n}}{n} = \frac{n}{n} - \frac{2 ( - 1 ) ^{n}}{n}

= \frac{n}{n} - \frac{2 ( - 1 ) ^{n}}{n}

Apply rule

\frac{a}{a} = 1

\frac{n}{n} = 1

= 1 - \frac{2 ( - 1 ) ^{n}}{n}

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Frequently Asked Questions (FAQ)

What is expand (n-2(-1)^n)/n ?
The solution to expand (n-2(-1)^n)/n is 1-(2(-1)^n)/n