Chemistry, asked by dhruvsingh23, 11 months ago

please tell this question​

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Answered by Dibya18
1

Answer:

15

Explanation:

formula used: (n2 -n1)(n2-n1 +1)/2

where n2=6

and n1= 1

Answered by farman51
1

Answer:

15

Explanation:

(n2-n1) (n2-n1+1)/2 where n2=6 and n1=1

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