$\left(i^{109}+i^{114}+i^{119}+i^{124}\right)=?$

Important Questions on Complex Numbers

EASY

11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 29 - Complex Numbers>EXERCISE 1>Q 10

$3i^{34}+5i^{27}-2i^{38}+5i^{41}=?$

EASY

11th West Bengal Board

IMPORTANT

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

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

EASY

11th West Bengal Board

IMPORTANT

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

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

EASY

11th West Bengal Board

IMPORTANT

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

Which of the following statements is correct$?$

EASY

11th West Bengal Board

IMPORTANT

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

Which of the following statements is correct$?$

EASY

11th West Bengal Board

IMPORTANT

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

Which of the following statements is correct$?$

EASY

11th West Bengal Board

IMPORTANT

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

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

EASY

11th West Bengal Board

IMPORTANT

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

If $\left(a+ib\right)=\sqrt{\frac{1+i}{1-i}}$ then the value of $\left(a^2+b^2\right)$ is