Math, asked by mohdashraf1, 1 year ago

evaluate 7 + 77 + 777 +... upto n terms

Answers

Answered by pranav57
0
7777+77777+777777+7777777777
Answered by Vishalk
1
the nth  term is 7777.
 
                       there fore 7 + 77 + 777 + 7777.
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