The value of - - -9 2 isNote- i- -1

The correct option is A 9i The value of √( ( 9)^2) =√( 81) =±9√( 1) =±9i ...

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Exponents with Unlike Bases and Same Exponent

The value of ...

Question

The value of $\sqrt{- {(- 9)}^{2}}$ is
(Note: $i = \sqrt{- 1}$ )

9 i

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9 + i

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9 - i

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9

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- 9

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Solution

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Similar questions

40 + 9 i > 12 + 5 i

\sqrt{- 1} = i

40 > 12

9 > 5

α_{i}, (i = 1, 2, 3, . . ., 9)

z^{9} = (4 - z)^{9}

9 \sum i = 1 Re (α_{i})

z

{⎛ ⎝ \frac{1 + sin \frac{2 π}{9} + i cos \frac{2 π}{9}}{1 + sin \frac{2 π}{9} - i cos \frac{2 π}{9}} ⎞ ⎠}^{3}

(4 + 5 i)^{2}

Express $\frac{(c o s θ + i s i n θ)^{4}}{(s i n θ + i c o s θ)^{5}}$ in a+ib form where i= $\sqrt{- 1}$

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