# 26 November

👉🏼The angles in a triangle are in the ratio 1:2:9. What is the size of each angle?

👈🏼Factorise 3x2-5x-2

👆🏼Express the following in the form 2n: $\frac{1}{16}$, $2 \sqrt{2}$

👇🏼Simplify $\sqrt{20}$

🖐🏼f(x) = 3x-5. Find f-1(x)