Zaznacz na osi liczbowej zbiory liczbowe spełniające warunek: a) x > -2 i 1/2 b) 1 < x << 5
obicz: 2x1 i 1/4 - 1/8: 9= 2x(1 i 1/4 - 1/8:9
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a) ___________________>
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-2 1/2
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1 5
2 * 1 1/4 -1/8 :9 = 2 * 5/4 - 1/8 * 1/9= 5/2 -1/72=
=180/72 - 1/72= 179/72 = 2 35/72
2 * (1 1/4 - 1/8 :9 ) = 2 * ( 5/4 - 1/72)=2*(90/72-1/72)=2*(89/72) = 89/36 =2 17/36