Lasleanaanaask
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10. Calculează a + b, daca:
a=1/2+2/3+3/4+4/5+5/6
b=1/2+2/3+3/4×4/5+5/6​

Răspuns :

Marya923ask
a=1/2+2/3+3/4+4/5+5/6 ; b=1/2+1/3/1/4+1/5+1/6

a+b=1/2+2/3+3/4+4/5+5/6 +1/2+1/3/1/4+1/5+1/6
a+b=(1/2+1/2)+(2/3+1/3)+(3/4+1/4)+(4/5+1/5)+(5/6+1/6)
a+b=2/2+3/3+4/4+5/5+6/6
a+b+2017=5+2017
a+b+2017=2022

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