CMath

What does the Python cmath module primarily deal with?

• Machine learning algorithms

• Complex numbers

• Web development

• File handling

Which method in the cmath module returns the arc cosine value of x?

• cmath.acos(x)

• cmath.atan(x)

• cmath.cos(x)

• cmath.cosh(x)

What is returned by cmath methods almost always?

• A boolean value

• A string

• An integer

• A complex number

Which cmath method checks whether two values are close or not?

• cmath.equals()

• cmath.isclose()

• cmath.isnear()

• cmath.close()

What does cmath.pi return?

• PI (3.1415...)

• Floating-point NaN (Not a Number) value

• A floating-point positive infinity value

• Euler's number (2.7182...)

Which of the following is NOT a method in the cmath module?

• cmath.exp(x)

• cmath.divide(x, y)

• cmath.log(x[, base])

• cmath.sqrt(x)

What does the cmath method 'cmath.isinf(x)' check?

• If x is a positive or negative infinity

• If x is a finite number

• If x is NaN (not a number)

• If x is a complex number

Which cmath constant returns a complex infinity value?

• cmath.nan

• cmath.e

• cmath.infj

• cmath.inf

How can a complex number be converted to polar coordinates using cmath?

• cmath.to_polar()

• cmath.polarize()

• cmath.polar()

• cmath.convert_to_polar()

Which method returns the hyperbolic sine of x?

• cmath.csch(x)

• cmath.sin(x)

• cmath.asinh(x)

• cmath.sinh(x)