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L = 2

L(L-1) = 2(L-1)

L2-L = 2L-2

L2-2L = L-2

L(L-2) = L-2

L = 1

Find the mistake in the above maths equations

Note by Yashasvini Sharma
3 years, 7 months ago

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1 vote

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According to me 5th step is absolutely right but when you do the 2nd step you must mention l is not equal to 1

Ashwin Upadhyay - 2 years, 6 months ago

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Fifth row, (L-2)=0

Suradnyana Wisnawa - 3 years, 7 months ago

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I think the mistake is in the fifth row, where both side divided by (L-2) which is zero

Suradnyana Wisnawa - 3 years, 7 months ago

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Fifth St ep is wrongg

Prasanna Krishna - 3 years, 2 months ago

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Simple because of multiplying it by (L-1) it become quadratic ..So it has two solutions 1 & 2.

Aman Chaudhary - 3 years, 7 months ago

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Comment deleted May 03, 2014

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after 5th step do L^2-3L+2=0 and get L=2

Yashasvini Sharma - 3 years, 7 months ago

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2L-2 is 0

Amey Sadegaonkar - 3 years, 7 months ago

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No, 2L-2 = 2

Suradnyana Wisnawa - 3 years, 7 months ago

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or 2

Hany Shenouda - 3 years, 7 months ago

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fourth row.

Sajid Askari - 3 years, 7 months ago

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Fourth step equates zero to zero

Nikesh Neelakantan - 3 years, 7 months ago

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