Question

sa se calculeze:(a+b)=c




​

Answer 1

Răspuns:

Explicație pas cu pas:

a. a+b-c=0,5+1,25-0,5=1,25

(a-c)-b=-1,25

a+b+c=2,25

b-a-c=1,25-1=0,25

b. a+b-c=2√2+3√2+√2=6√2

(a-c)-b=3√2-3√2=0

a+b+c=2√2+3√2-√2=4√2

b-a-c=3√2-2√2+√2=2√2

c. a+b-c=√2+3√3+√2-√3-4√3=2√2-2√3=2(√2-√3)

(a-c)-b=√2+3√3-4√3-√2+√3=0

a+b+c=√2+3√3+√2-√3+4√3=2√2+6√3

b-a-c=√2-√3-√2-3√3-4√3=-8√3