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As tan(x)=sin(x)/cos(x)

and sin(pi/4) = cos(pi/4) (= sqrt(2)/2)

then tan(pi/4) = 1

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โˆ™ 2012-09-27 06:51:17
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Q: How was it determined that the tangent of pi divided by 4 is 1?
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Related questions

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If you have an angle of (pi/4+k*pi) or pi*(0.25+k) radians where k is an integer.

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