Explain cos() in Python.

1.	Explain cos() in Python.
Answer» Description: The method cos() returns the cosine of x radi Answer: Syntax : Following is the syntax for cos() method cos(x) Note: This function is not accessible directly so we need to import math module and then we need to call this function using math static object. Parameters : x—This must be a numeric value. Return Value : This method returns a numeric value between-1 and 1 which represents the cosine of the angle. Example: The following example shows the usage of cos() method # !/usr/bin/python import math print “cos(3):”, math.cos(3) print “cos(-3):”, math.cos(-3) print “cos(0):”, math.cos(0) print “cos(math.pi):”, math.cos(math.pi) print “cos(2math.pi):”, math.cos(2math.pi) This will produce the following result: cos(3) >0.9899924966 cos(-3) >0.9899924966 cos(0): 1.0 cos(math.pi) >1.0

Answer»

Description: The method cos() returns the cosine of x radi Answer:

Syntax : Following is the syntax for cos() method

cos(x)

Note: This function is not accessible directly so we need to import math module and then we need to call this function using math static object.

Parameters : x—This must be a numeric value.

Return Value : This method returns a numeric value between-1 and 1 which represents the cosine of the angle.

Example: The following example shows the usage of cos() method

# !/usr/bin/python

import math

print “cos(3):”,

math.cos(3)

print “cos(-3):”,

math.cos(-3)

print “cos(0):”,

math.cos(0)

print “cos(math.pi):”,

math.cos(math.pi)

print “cos(2*math.pi):”,

math.cos(2*math.pi)

This will produce the following result:

cos(3) >0.9899924966

cos(-3) >0.9899924966

cos(0): 1.0

cos(math.pi) >1.0

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