Question

without adding find 1+3+5+7+9+11+13 and write the reason.​

Answer 1

Answer:

Answer is 49.

Reason : they all are negative numbers

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

1+3+5+7+9+11+13=49

But without adding ,

★★★

firstly, count all the numbers that is, 7

Now, square of 7 = 49