The sum of first n natural numbers is given by n(n+1)2n(n+1)2. Find the sum of first 11 natural numbers.
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0
Answer:
66
Step-by-step explanation:
SUM OF FIRST n NATURAL NUMBERS=n(n+1)÷2
SUM OF FIRST 11 NATURAL NUMBERS=11×(11+1)÷2
=11×12÷2
=66
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answer is 66
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