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 ▸Give the possible values of x when x^2 - 5x + 4 = 0
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What if my equation doesn't factorise?
The sides of a rectangle are x and (x+2), where x>0 the area of the rectangle is 8, what is the value of x?