Maths with David

    11 January

    👆🏼Write down the equation of a line that is perpendicular to y=2x

    👇🏼Simplify \frac{x^2+8x+15}{x^2-x-12}

    👉🏼Find the size of angle DEF:

    👈🏼A is inversely proportional to the square of B. When A = 10, B = 4. Find A when B = 10.

    🖐🏼Make m the subject of \pi x = \frac{m+8}{m-1}