Let ƒ : R … R be such that for all x … R (2^1+x + 2^1–x), ƒ(x) and (3^x + 3^–x) are in A.P., then the minimum value of ƒ(x) is

Sequences and Series

JEE Main 2020 · 8 Jan, Morning shift · Q5217

MathematicsEasy178×since 2002Q5217

Let ƒ : R

\to

R be such that for all x

\in

R (2^1+x + 2^1–x), ƒ(x) and (3^x + 3^–x) are in A.P., then the minimum value of ƒ(x) is

JEE Main 2020 · 8 Jan, Morning shift · Q5217

MathematicsEasy178×since 2002Q5217

Let ƒ : R

\to

R be such that for all x

\in

R (2^1+x + 2^1–x), ƒ(x) and (3^x + 3^–x) are in A.P., then the minimum value of ƒ(x) is