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15 2 1 1 36 Solve : — + = = 17, -+-- = — хух у 5

JEE/Engineering Exams
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152 - 17 Sol. We have the equations : 36 1 1 -+-=- x y and 5 2.2_72 (iii) -+- =- Multiplying eq. (ii) by 2, we get, ry 5 Subtracting (iii) from (i), we get 85-72 13 72 2 - 13 -= 13 -=- 11 - - 5 17- 13x5 x x 13= 13 5 = x= - 13 Putting the value of x in (ii), we get 1 36 1 y = .. 5 3 y = y = X = = - = - -- + - 5 5 Hence, x=5, y = 5
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