Fermi · Concept Library · Courses · Books · Problems · Simulations · Math Wiki · High School

Fermi › Problems

A Level

MATHEMATICS · Subjective · A Level · Mathematics · Exponentials and logarithms · Exponentials and logarithms

Problem

Solve

\frac{e^{x}+e^{-x}}{2}=4

.

Related theory

Exponential & Logarithmic Equations
Exponential and Logarithmic Functions
Functions
Derivatives of standard functions via chain rule
Continuity and Differentiability
Logarithmic Functions

Browse the problem library