IB
IBO
Mathematics AA
October 2019
QP-201910-Mathematics-P1-HL · Question 9
Question (excerpt):
9. [Maximum mark: 14] (a) Given that cos 75û = q , show that cos 105û = - q . [1] In the following diagram, the points A , B , C and D are on the circumference of a circle with centre O and radius r …
9. [Maximum mark: 14] (a) Given that cos 75û = q , show that cos 105û = - q . [1] In the following diagram, the points A , B , C and D are on the circumference of a circle with centre O and radius r …
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