CBSE Important Questions of Complex Numbers and Quadratic Equations | Zigya

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 Multiple Choice QuestionsShort Answer Type

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1.

Express each  of the complex number  given in the  Excercise 1 to 10 in the form a + ib.

space space space space space space space space space space space space space left parenthesis 5 straight i right parenthesis open parentheses fraction numerator negative 3 over denominator 5 end fraction straight i close parentheses

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2.

i9 + i19

513 Views

3.

i-39

666 Views

4.

3(7 + i7) + i(7 + i7)

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5.

Express each of the complex number given in the  form of  a + ib.

(1 - i) - (-1 + i6)

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6.

Express each of the complex number given in the  form of  a + ib.

space space space space space space space space space space space space space space space space open parentheses 1 third plus 3 straight i close parentheses cubed

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7.

Express each of the complex number given in the  form of  a + ib.


space space space space space space space space space space space space space space space space space space space open parentheses 1 fifth plus straight i 2 over 5 close parentheses minus open parentheses 4 plus straight i 5 over 2 close parentheses

             

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8.

Express each of the complex number given in the  form of  a + ib.


space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space open square brackets open parentheses 1 third plus straight i 7 over 3 close parentheses plus open parentheses 4 plus straight i 1 third close parentheses close square brackets minus open parentheses fraction numerator negative 4 over denominator 3 end fraction plus straight i close parentheses

             

113 Views

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9.

Express each of the complex number given in the  form of  a + ib.

(1 - i)4


             

138 Views

10.

Find the multiplicative inverse of

- i

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