Shortcut Methods
JEE Main
Shortcut Methods and Tricks:
-
To find the modulus of a complex number, simply use the formula $\sqrt{a^2 + b^2}$, where (a) and (b) are the real and imaginary parts of the complex number, respectively.
-
To find the argument of a complex number, use the formula $\tan^{-1}(\frac{b}{a})$, where (a) and (b) are the real and imaginary parts of the complex number, respectively.
-
To find the complex conjugate of a complex number, simply change the sign of the imaginary part.
CBSE Board Exams
Shortcut Methods and Tricks:
- To find the modulus of a complex number, simply use the formula $\sqrt{a^2 + b^2}$, where (a) and (b) are the real and imaginary parts of the complex number, respectively.
- To find the argument of a complex number, use the formula $\tan^{-1}(\frac{b}{a})$, where (a) and (b) are the real and imaginary parts of the complex number, respectively.
- To find the complex conjugate of a complex number, simply change the sign of the imaginary part.