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मान ज्ञात कीजिए - `tan^(-1)[tan""(-(pi)/(4))]` |
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Answer» Correct Answer - `(pi)/(4)` माना `y=tan^(-1)[tan(-(3pi)/(4))]` ` implies tany=tan""((3pi)/(4))=-tan(pi-(pi)/(4))=-(-tan""(pi)/(4))` `implies tany=tan""(pi)/(4)` अतः `y=(pi)/(4)` |
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