(1+w-w2)(1-w+w2)=4 prove it step by step
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Step-by-step explanation:
we know 1+w+w2 = 0
hence we can write 1 + w = –w2 & 1 + w2 = –w
now ( –w –w)( –w2 –w2) = (–2w)* (–2w2)
4 w3 = 4
hence proved it
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