Q126Multiple choice
If ∆ is an operation such that for integers a and b we have a ∆ b = a × b – 2 × a × b + b × b (–a) × b + b × b then find
- (i)4 ∆ ( – 3)
- (ii)( – 7) ∆ ( – 1) Also show that 4 ∆ ( – 3) ≠ (– 3) ∆ 4 and ( – 7) ∆ ( – 1) ≠ ( – 1) ∆ (– 7)
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(i) 4 ∆ ( – 3)
(ii) ( – 7) ∆ ( – 1) Also show that 4 ∆ ( – 3) ≠ (– 3) ∆ 4 and ( – 7) ∆ ( – 1) ≠ ( – 1) ∆ (– 7)