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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 that7A + b + c = 2abc7(1)+(-2)+(-1)=2(1)(-2)(-1)=>7-2-1=2×2=>7-3=4=>4=4L.H.S=R.H.SHENCE SHOWED |
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