InterviewSolution
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InterviewSolution
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यदि `x=1/(2+sqrt(3)),y=1/(2-sqrt(3))` है तो `8xy(x^(2)+y^(2))` का मान क्या होगा?A. 112B. 194C. 290D. 196 |
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Answer» Correct Answer - A According to the question `implies x=1/(2+sqrt(3)),y=1/(2-sqrt(3))` `implies x=1/(2+sqrt(3))xx(2-sqrt(3))/(2-sqrt(3))` `y=1/(2-sqrt(3))xx(2+sqrt(3))/(2+sqrt(3))` `implies x=2-sqrt(3),y=2+sqrt(3)` `8xy(x^(2)+y^(2))` `=8(2-sqrt(3))(2+sqrt(3))[(2-sqrt(3))^(2)+(2+sqrt(3))^(2)]` `implies 8xx1[7-2sqrt(3)+7+2sqrt(3)]=112` |
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