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anonymous
 4 years ago
prove that tan1 1/8 + tan1 1/5 = tan1 1/3
anonymous
 4 years ago
prove that tan1 1/8 + tan1 1/5 = tan1 1/3

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0tan1 (1/8) = 7.12 tan1 (1/5)= 11.31 tan1 (1/3) = 18.43 tan1 (1/8) + tan1 (1/5) = tan1 (1/3) 7.12 + 11.31 = 18.43

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0use the caculator??????

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[tan^{1}A + tan^{1}B = tan^{1}{\frac{A + B}{1 AB}}\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[tan^{1} {\frac{\frac{1}{8} + \frac{1}{5}}{{1}  {\frac{1}{40}}}}\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[tan^{1}{\frac{13}{39}} = tan^{1}{\frac{1}{3}}\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[\text{^_^ That is your solution :D} \]
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