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```				   tan20tan40tan60 =tan20-tan40-tan60
```

6 years ago

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Answers : (1)

```										tan60=tan(40+20)tan60=tan40 + tan20/(1-tan40tan20)tan60-tan60tan40tan20=tan40+tan20tan60tan40tan20=tan60-tan40-tan20there is some prblem with the questionDifficult to understand - post it here and we will get you the answer and detailed solution very quickly. We are all IITians and here to help you in your IIT JEE preparation.DO APPROVE IF THE ANSWER HELPS YOU.Now you can win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.Regards,Askiitians ExpertsRahul- IIT Roorkee
```
6 years ago

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