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0 votes
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If D is an operation such that for integers a and b we have

Δ b = a × b – 2 × a × b + b × b (–a) × b + b × b then find 

(i) 4 Δ ( – 3)

(ii) ( – 7) Δ ( – 1)

Also show that 4 Δ ( – 3)(– 3) Δ 4

and ( – 7) Δ ( – 1)  ( – 1) Δ (– 7)

1 Answer

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Best answer
(i) 4 ∆ (–3) = 21, (–3) ∆ 4 = 28, No

(ii) (–7) ∆ (–1) = –6, (–1) ∆ (–7) = 42, No

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