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सरलीकरण करने पर `1-1/(1+sqrt(2))+1/(1-sqrt(2))` का मान क्या होगा?A. `2sqrt(2)-1`B. `1-2sqrt(2)`C. `1-sqrt(2)`D. `-2sqrt(2)` |
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Answer» Correct Answer - B `1+1/(1+sqrt(2))+1/(1-sqrt(2))` `=1-((2sqrt(2)+1))/((sqrt(2)+1)(sqrt(2)-1))-((sqrt(2)+1))/((sqrt(2)-1)(sqrt(3)+1))` `=1-sqrt(2)+1-sqrt(2)-1=1-2sqrt(2)` |
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