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सिद्ध कीजिए की f(x)=tan ^(-1)(sin x + c...

सिद्ध कीजिए की `f(x)=tan ^(-1)(sin x + cos x ),x gt 0 ` से प्रदत फलन `f,(0,pi/4)` में निरंतर वर्धमान फलन है |

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