👉🏼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: ,

👇🏼Simplify

🖐🏼f(x) = 3x-5. Find f^-1(x)