Question

starting from(-1)×5,write various products showing some pattern to show(-1)×(-1)=1

Answer 1

-2×-3=6, -10×-10=100 these r the 2 pattern to show (-1)×(-1)=1

Answer 2

Answer:

–1 × 5 = –5, –1 × 4 = – 4 = – 5 + 1, – 1 × 3 = – 3 = – 4 + 1,

–1 × 2 = – 2 = – 3 + 1, – 1 × 1 = – 1 = – 2 + 1, – 1 × 0 = 0 = – 1 + 1 so, – 1 × (–1) = 0 + 1 = 1.

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