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Gaige
Mathematics
25 March, 23:55
Find the cosine and the tangent of 60 degrees
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Kent
26 March, 00:04
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We are required to find the cosine and tangent of 60°. Here we use an equilateral triangle whose side is 2 units, the height of the triangle by Pythagorean theorem will be √3 units, the base of the right angle triangle formed by bisection of the base will be 1 unit.
thus:
tan θ=opposite / adjacent
opposite = √3
adjacent=1
hence:
tan 60=√3/1=√3
cos θ=adjacent / hypotenuse
adjacent=1
hypotenuse=2
thus
cos 60=1/2
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