WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 11

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11th West Bengal Board

IMPORTANT

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If $a and b$ are integers then $\sqrt{a} \times \sqrt{b} = \sqrt{a b}$ is true only when

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Important Questions on Complex Numbers

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11th West Bengal Board

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WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 12

\sqrt{- 9} \times \sqrt{- 25} = ?

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11th West Bengal Board

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WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 13

Which of the following statements is correct

?

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11th West Bengal Board

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WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 14

Which of the following statements is correct

?

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11th West Bengal Board

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WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 15

Which of the following statements is correct

?

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11th West Bengal Board

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WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 16

{(\frac{1 - i}{1 + i})}^{2} = ?

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11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 17

If

(a + i b) = \sqrt{\frac{1 + i}{1 - i}}

then the value of

(a^{2} + b^{2})

is

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11th West Bengal Board

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WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 18

The smallest positive integer

n

for which If

{(\frac{1 + i}{1 - i})}^{n} = 1

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11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 19

If

(a^{2} + b^{2}) = 1

then

\frac{(1 + b + i a)}{(1 + b - i a)} = ?