Question

Observe the following pattern and write the value of 1 + 3 + 5+7+9+ 11 + ... + 27.
1 + 3 = 4=22
1 - 3+5=9= 32
1 - 3 - 5 + 7 = 16 = 42
1-3-5+7+9= 25 = 52​

Answer 1

Answer:

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Step-by-step explanation:

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