Review question

# What (approximately) is the square root of $26$? Add to your resource collection Remove from your resource collection Add notes to this resource View your notes for this resource

Ref: R8065

## Question

By making use of the relation $\delta y \approx \dfrac{dy}{dx} \times \delta x$, and without using tables, prove that $5.1$ is an approximate value of $\sqrt{26}$.