IB Math HL Trigonometry Test 4 2015 P2 Q1

IB Math HL Trigonometry Test 4 2015 P2 Q1

IB Year 6 | Grade 12

5 marks

Find the exact solution of \(\arctan x+\arctan(2x)=\arctan\sqrt2\).[5]

Solution:

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Answer:\(x=\frac{1}{2\sqrt2}=\frac{\sqrt2}{4}\).

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