When do I use Sin, Cos and Tan?
Just remember SOH,CAH,TOA. It sounds like Sock-A-Toe-Ah. Quite strange but extremely effective. SOH means Sin=Opposite/Hypotenuse Cos=Adjacent/Hypotenuse Tan=Opposite/Adjacent The three letters in each abbreviation represent the first letter in each word of the formulae.
DC
Related Maths GCSE answers
All answers ▸How do i solve the quadratic x^2 + 5x + 6 = 0 ?
8 pens in a bag, 3 blue, 5 red. 2 taken out at random, without replacement. Probability they are the same colour?
Find all three roots of the cubic: 2x^3 +5x^2 - 22x +15=0.
Heather invests £900 for 3 years at 2% per annum compound interest. Calculate the value of her investment at the end of the 3 years.