NDA | Mathematics | Complex Number

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Question 1

The complex number  is equal to

• A0
• B2
• C
• DNone of these

Question 2

If then  is equal to

• A
• B
• C
• D

Question 3

If  is a purely imaginary number and ,then a value of  is:

• A
• B
• C
• D

Question 4

Let  is purely imaginary. Then the sum of the elements in A is:

• A
• B
• C
• D

Question 5

If then is:

• A
• B
• C
• D

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