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(1-omega)(1-omega^2)(1-omega^4)(1-omega^5)=9 |
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Answer» SOLUTION :L.H.S.`=(1-omega)(1-omega^2)(1-omega^4)(1-omega^5)` `=(1-omega)(1-omega^2)(1-omega)(1-omega^2)` (1-omega)^2(1-omega^2)^2` `={(1-omega)(1-omega^2)}^2` `=(1-omega^2-omega+omega^3)^2` `{3-(omega^2+omega+1)^2` `(3)^2=9=R.H>S` (PROVED) |
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