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5. a = 1, b = -2, c = - 1, show that 7a + b + c = 2abc​

Answer»

a = 1, B = -2, c = - 1, show that

7A + b + c = 2abc

7(1)+(-2)+(-1)=2(1)(-2)(-1)

=>7-2-1=2×2

=>7-3=4

=>4=4

L.H.S=R.H.S

HENCE SHOWED



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