Math, asked by Gupta326, 9 months ago

Prove that : 4tan inverse (1/5) - tan inverse (1/70) + tan inverse (1/99) = pie/4

Answers

Answered by Shakirullah

0

Answer:

4(5)-9/14+5/11

20 - 9 +70 = π

1 14 11 4

3080-99+70

154

3080-169 = 2911

154. 154

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