Question and Answers Forum | ||
Question Number 59549 by hhghg last updated on 11/May/19 | ||
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Answered by ajfour last updated on 11/May/19 | ||
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Commented by prakash jain last updated on 12/May/19 | ||
I think questioner is probably in lower standard and just learning variable substitution | ||
Answered by prakash jain last updated on 12/May/19 | ||
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