Calculate-5-i-4-239-i-Then-Prove-the-Machin-formula-4arctan-1-5-arctan-1-239-pi-4-

Question Number 216746 by sniper237 last updated on 17/Feb/25

C a l c u l a t e \frac{{(5 + i)}^{4}}{239 + i} T h e n

P r o v e t h e M a c h i n f o r m u l a

4 a r c t a n (\frac{1}{5}) - a r c t a n (\frac{1}{239}) = \frac{π}{4}