OCR MEI C2 2009 June — Question 1

Exam BoardOCR MEI
ModuleC2 (Core Mathematics 2)
Year2009
SessionJune
TopicTrig Equations
1 Use an isosceles right-angled triangle to show that \(\cos 45 ^ { \circ } = \frac { 1 } { \sqrt { 2 } }\).
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