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Popular >

simplify (9+i)/(-7i)

Solution

simplify

\frac{9 + i}{- 7 i}

Solution

- \frac{1}{7} + \frac{9}{7} i

Solution steps

\frac{9 + i}{- 7 i}

Multiply by the conjugate

\frac{- i}{- i}

= \frac{( 9 + i ) ( - i )}{- 7 i ( - i )}

Simplify

\frac{( 9 + i ) ( - i )}{- 7 i ( - i )} : \frac{- 9 i + 1}{- 7}

= \frac{- 9 i + 1}{- 7}

Rewrite in standard complex form:

- \frac{1}{7} + \frac{9}{7} i

= - \frac{1}{7} + \frac{9}{7} i

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Frequently Asked Questions (FAQ)

What is (9+i)/(-7i) ?
The solution to (9+i)/(-7i) is -1/7+9/7 i