You are required to check the power factor of an electric load. no pf is available. you would use

If no pf value is shown on the loads nameplate:

Use a power analyzer multi-meter like a Fluke brand specialty meter

Also and oscilloscope can be used with dual input.  Sinusoidal wave form from voltage input probe and current probe make a dual trace.  

There are also power factor transducers that use CT/current xformer and PT potential xformer.  Provide an output in a range like

4 m.a. = .5 pf

12 m.a.= unity/1

20 m.a.= -.5 pf

Explanation:

PF = cos(φ)

Where PF is power factor, Φ is phase angle.

import math

x=int(input("enter a number: "))

print (math.sqrt(math.fabs(

answer:

it thinks that you spelled something wrong.

explanation: