25. Find the sum of the following series-
1. 12 + 14 +16 +......... +200.
Answers
Answered by
0
Answer:
sum of even no is n(n+1)
so apply it
Step-by-step explanation:
2+4+.........+10+12+........+200-(2+4+6+8+10)
u will get the answer
Answered by
1
Answer: 10070
Step-by-step explanation:
Sum of n terms = n÷2×(x1+xn)
n = xn- x1÷ d+1
= 200-12÷2+1
= 95
Sum= 95÷ 2×(12+200)
= 10070
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