How do I know whether to use sin, cos, or tan in trigonometry?
Label the sides of your triangleHypotenuse is the longest (opposite right angle)Opposite is opposite the given angleAdjacent is next to the given angleTwo are useful, one is irrelevant. Cross out the one that we do not know, or are not looking for.Two sides will remain labelled. Write out the SOH CAH TOA triangles and see which contains these two sides.This is the triangle you will use for the calculation.
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Related Maths GCSE answers
All answers ▸Determine if the Following equality has real roots: (3*X^2) - (2*X) + 4 = (5*X^2) + (3*X) + 9, If the equation has real roots, calculate the roots for this equation.
Differentiate y=3x^4 with respect to x
Adam buys 4kg of sweets and pays £10 for them. Adam puts all of the sweers into bags with 250g in each bag. He sells the bags for 70p each. All the bags of sweets are sold, what is the percentage profit?
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