Answer:
11
Step-by-step explanation:
The answer to your question is
(7)-9= -54
Answer:
(c) n(n+1)/√2
Step-by-step explanation:
√2+√8+√18+√32+...
1√2+2√2+3√2+4√2+...+n√2
- First term= √2
- Common difference= √2
- Sₙ= n/2(2√2+(n-1)√2)= n/2(n√2+√2)=n(n+1)√2/2= n(n+1)/√2
Option (c) is correct
Answer:
6
Step-by-step explanation:
Step 1: Multiplying the power
2 x 2 x 2 = 8
Step 2: Subtracting:
15-8 = 7
Step 3: Dividing
42/7 = 6
Answer : 6
Hope this HELPED
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