exam Maths Puzzle Numerical Ability

Make u as the subject in 1/u+ 1/v = 1/f

Read Solution (Total 0)

exam Other Question

Use logs on both sides of the equation

9^28 - 9^27 / 8 = 3^x to find the unknown

Please show all steps

Stanbon for Math President!
Add 8a - 6 and 4a + 5.