Asked by Jose
What it 120+119+118+117+116...+2+1
Answers
Answered by
MathMate
Do it the mathematician's (Gauss) way:
1 + 2 + 3 + ..........+ 60 +
120 + 119 + 118 + 117 + ...+61
= 121 + 121 + 121 + 121 + ....(sixty times)
Can you take it from here?
1 + 2 + 3 + ..........+ 60 +
120 + 119 + 118 + 117 + ...+61
= 121 + 121 + 121 + 121 + ....(sixty times)
Can you take it from here?
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