InterviewSolution
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फलनों का x के सापेक्ष समाकलन कीजिए - `(1)/(sqrt((x^(2)+3x+1)))` |
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Answer» Correct Answer - `log(2x+3)+2sqrt(x^(2)+3x+1)` `x^(2)+3x+1=x^(2)+3x+(9)/(4)+1-(9)/(4)=(x^(2)+3x+(9)/(4))-(5)/(4)` `=(x+(3)/(2))^(2)-(5)/(4)=(1)/(4)[(2x+3)^(2)-(sqrt5)^(2)]` |
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