How much is √ 8 - (3 √ 32-2 √ 18)
-4√2 .
1 = 1 & # 178;; 1 + 3 = 2 & # 178;; 1 + 3 + 5 = 3 & # 178;; 1 + 3 + 5 + 7 = 4 & # 178;... What is the general conclusion reflecting this law
The sum of n odd numbers starting from 1 is equal to N & # 178;
That is: 1 + 3 + 5 + +(2n-1)=n²
Calculation of power: - 7 & # 178; + 2 × (- 3) 178; + (- 9) × (- 3 / 1) 178;
Wrong number, it should be: - 7 & # 178; + 2 × (- 3) 179; + (- 9) × (- 1 / 3) 178;
:-7²+2×(-3)³+(-9)× (-1/3)²
=﹣49+2×﹙﹣27﹚-9×﹙1/9﹚
=﹣49-54-1
=﹣﹙49+54+1﹚
=﹣104