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Pi/4=5arctan(1/7)+2arctan(3/79) [9 réponses] : ✯✎ Supérieur - 20240 - Forum de Mathématiques: Maths-Forum
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&line2=\mathrm{Solution:\:}0.66577%E2%80%A6 "arctan(pi/4)")
arctan(pi/4)
3. Estimate pi using the Maclaurin series for | Chegg.com
Dave Richeson on Twitter: "Euler proved that π/4=arctan(1/2)+arctan(1/3), which can be used for computing digits of π (using the arctangent series). I wondered if I could prove it without using a trig
Question 7 - Solve tan-1 2x + tan-1 3x = pi/4 - Class 12
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=\frac{%CF%80}{4}&line2=\mathrm{Solution:\:}x=1 "arctan(x)= pi/4")
arctan(x)= pi/4
Prove that tan(pi/4 +1/2 cos^(-1) (a/b)) + tan^(-1) (pi/4 -1/2 cos^(-
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algebra precalculus - Solving trigonometric equation $\arctan y^2+\arctan x^2= π/4$ - Mathematics Stack Exchange
%2B\arctan(\frac{2}{x%2B1})=\frac{%CF%80}{4}&line2=\mathrm{Solution:\:}x=\frac{3%2B\sqrt{17}}{2},x=\frac{3-\sqrt{17}}{2} "arctan(1/(x-1))+arctan(2/(x+1))= pi/4")
arctan(1/(x-1))+arctan(2/(x+1))= pi/4
