Which of the following is an even function? f(x)=y^x-y^-x/y^x-y^-x f(x)=y^x+1/y^x-1 f(x)=x y^x-1/y^x+1 f(x)=log(x+sqrt(x^2+1))

planregulador9Cl

planregulador9Cl

Answered question

2022-11-24

Which of the following is an even function?
f ( x ) = y x y x y x y x f ( x ) = y x + 1 y x 1 f ( x ) = x y x 1 y x + 1 f ( x ) = log ( x + x 2 + 1 )

Answer & Explanation

Arturo Hogan

Arturo Hogan

Beginner2022-11-25Added 13 answers

f(x) is said to be 'even' if and only if f(x) is a real-valued function of a real variable x, and f(-x) = f(x).
So, answer is f ( x ) = log ( x + x 2 + 1 )

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