Calculează a= 2/3*3/4*4/5*6/7*7/8 b= 3/4*4/5*5/6*6/7*7/8*8/9 reprezintă pe axa fracțiile obținute compara fracțiile a și b
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Răspuns:
a=2/3*3/4*4/5*6/7*7/8
a=2×1/5×6/1×1/8
a=2/5×6/8
a=1/5×6/4
a=1/5×3/2
a=3/10
a=0,3
b= 3/4*4/5*5/6*6/7*7/8*8/9
b=3×1/9
b=3/9
b=1/3
b=0,3333
b=0,(3)
a<b