Simple method to find amplitude & modulus & express in the polar form complex number example PART-3

In this video explaining complex number example. In this example we need amplitude & modulus and also express in the polar form. This is very simple method.
Geometrically the modulus of a complex number represents the distance of the complex number from the origin in the complex plane while the amplitude represents the angle between the complex number and the positive real axis. Together the modulus and amplitude fully describe a complex number in the polar form z = r(cos(θ) + i sin(θ)) where r is the modulus and θ is the amplitude.

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COMPLEX NUMBER: 18MATDIP31

Differential Calculus:18MATDIP31

Ordinary differential equation 18MATDIP31,17MATDIP31

Integral Calculus 18MATDIP31,17MATDIP31

Vector differentiation 18MATDIP31,17MATDIP31

Differential Calculus & Partial Differential 18MATDIP31,17MATDIP31

18MATDIP41 Linear Algebra

18MATDIP41 Numerical Methods

18MATDIP41 Higher order ODEs

18MATDIP41 Partial Differential Equations

LAPLACE TRANSFORM : 18MAT31

Fourier Transforms,Z-transform : 18MAT31 & 17MAT31

Fourier Series: 18MAT31 & 17MAT31

Calculus of Variation & Numerical Methods 18MAT31

Numerical Methods ODE's: 18MAT31 & 17MAT41

Joint Probability & Sampling Theory: 18MAT41 & 17MAT41

Probability Distributions: 18MAT41 & 17MAT41

Calculus of Complex Functions: 18MAT41 & 17MAT41

Curve fitting & Statistical Method 18MAT41 17MAT31

[honneshvip]

(b) Express `sqrt(8)+4i` in the polar form and hence find its modulus and amplitude. Pls solve this problem