CBSE Class 10 Answered
can you please tell me how the circled number is not found in the next step
Asked by acshanadhana15 | 14 Oct, 2020, 11:02: AM
Expert Answer
In a particular step, we have , -4( a2 d2 + b2 c2 - 2abcd ) = 0
above expression can be writtena s, -4 ( ad - b c)2 = 0
Since bracketed algeberic term is multiplied by a constant (-4) and the product is zero , we get (ad - bc)2 = 0
Hence -4 is not considered for next step.
Answered by Thiyagarajan K | 14 Oct, 2020, 21:14: PM
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