Difference between revisions of "Maths: From the forum"
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'''Bindu Thirumalai IT for Change ''' You have said that let a=x in step 1. Therefore this step 2(a-x)= a-x divide both sides by a-x is not possible because a-x = 0 and you cannot divide by zero, its undefined. | '''Bindu Thirumalai IT for Change ''' You have said that let a=x in step 1. Therefore this step 2(a-x)= a-x divide both sides by a-x is not possible because a-x = 0 and you cannot divide by zero, its undefined. | ||
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| + | '''Sriranjani Ranganathan, IT for Change''' Yes, this is the fallacy. Rules of cancellation and algebraic manipulation do not hold when zero is involved... | ||
= Which day is Pi Day ? = | = Which day is Pi Day ? = | ||
Revision as of 06:46, 8 January 2013
Sriranjani Ranganathan, IT for Change
Teachers Response Let a=x
a+a=a+x
2a-2x = a+x-2x
2(a-x)= a-x divide bothsides by a-x
2=1
Bindu Thirumalai IT for Change You have said that let a=x in step 1. Therefore this step 2(a-x)= a-x divide both sides by a-x is not possible because a-x = 0 and you cannot divide by zero, its undefined.
Sriranjani Ranganathan, IT for Change Yes, this is the fallacy. Rules of cancellation and algebraic manipulation do not hold when zero is involved...
Which day is Pi Day ?
Mary Shyla, GMPS Begur Which day is Pi Day ?
Sneha Titus, University Resource Centre, Azim Premji University March 14 is called Pi Day (3-14) The date is in American format For more information you could check out [[1]] Incidentally June 28 (6-28) is called 2 pi day!