Isra (India) = 344 isi (Dubai, uae) = 829



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Materials and Methods


Non-traditional examples of solving problems allow us to more fully reveal the potential of schoolchildren, to introduce them to creativity and research activities. Some tasks, dear colleagues, may seem difficult for you to choose them as exercises in the lesson, then you can consider them in group or elective classes like.
x 2xy y 2  4




Example №1. x 2xz z 2  9


y 2yz z 2  36
Does the system of equations have solutions for x> 0, y> 0, z> 0?


Solution: Assume that there is a triple of positive numbers x, y, z satisfying each equation of the given system. Then a geometric interpretation is possible in the figure (1).



Impact Factor:

ISRA (India) = 1.344 ISI (Dubai, UAE) = 0.829
GIF (Australia) = 0.564 JIF = 1.500

SIS (USA) = 0.912 РИНЦ (Russia) = 0.156 ESJI (KZ) = 4.102
SJIF (Morocco) = 2.031

ICV (Poland) = 6.630 PIF (India) = 1.940
IBI (India) = 4.260



Fig-1. Figure on the subject of the task.





But the triangle ABC does not exist, because the triangle inequality is not satisfied. So the system has no solutions. [2]

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