Class 8 (Ganita Prakash & Old NCERT)
Chapter 2 Class 8 - Power Play (Ganita Prakash)

Power of (−1)

Last updated at Aug. 12, 2025 by

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Power of (−1)Suppose we have (−1)2 = −1 × −1 = 1 (−1)3 = −1 × −1 × −1 = 1 × −1 = −1 (−1)4 = −1 × −1 × −1 × −1 = 1 × 1 = 1 (−1)5 = −1 × −1 × −1 × −1 × −1 = 1 × 1 × −1 = −1 (−1)6 = −1 × −1 × −1 × −1 × −1 × −1 = 1 × 1 × 1 = 1 (−1)7 = −1 × −1 × −1 × −1 × −1 × −1 × −1 = 1 × 1 × 1 × −1 = −1 (−1)8 = −1 × −1 × −1 × −1 × −1 × −1 × −1 × −1 = 1 × 1 × 1 × 1 = 1 (−1)9 = −1 × −1 × −1 × −1 × −1 × −1 × −1 × −1 × −1 = 1 × 1 × 1 × 1 × −1 = −1 (−1)10 = −1 × −1 × −1 × −1 × −1 × −1 × −1 × −1 × −1 × −1 = 1 × 1 × 1 × 1 × 1 × 1 = 1 So, we can say that (−1)odd number = −1 (−1)even number = 1

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 15 years. He also provides Accounts Tax GST Training in Delhi, Kerala and online.