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| 1. |
निम्नलिखित व्यंजकों के मान ज्ञात कीजिए - `tan^(-1)(tan.(pi)/(4))`. |
| Answer» `tan^(-1)(tan.(pi)/(4))=(pi)/(4)," "[because (pi)/(4) in (-(pi)/(2),(pi)/(2))]` | |