Question

Find the sum of (-20) + 20 + (-20) + 20 + ... till the 315th term.
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Answer 1

Answer:

-20

Step-by-step explanation:

• As the no.s are alternate i.e, -20&+20
• For even terms they cancel out each other
• And for odd terms -20 will be the answer
• Therefore u will get answer as -20