A-Level
AQA
Mathematics (UK)
May 2018
QP-201805-Mathematics-U3-Local · Question 14
Question (excerpt):
14 Some students are trying to prove an identity for sin (A þ B) . They start by drawing two right-angled triangles ODE and OEF, as shown. The students’ incomplete proof continues, Let angle DOE ¼ A a…
14 Some students are trying to prove an identity for sin (A þ B) . They start by drawing two right-angled triangles ODE and OEF, as shown. The students’ incomplete proof continues, Let angle DOE ¼ A a…
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