# Jinhua Mathias

## Jinhua's activity

#### Jinhua Mathias copied Geometric series 3 to Jinhua's copy of Geometric series 3 4 years ago

#### Jinhua Mathias on CF Maths Portfolio - Differentiation 2 - Basic Polynomial Expressions (with fractional coefficients) 4 years ago

Gave some feedback: Ready to use

#### Jinhua Mathias on CF Maths Portfolio - Basic Polynomial Expressions 2 4 years ago

Gave some feedback: Has some problems