direct method formula
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mean = £fixi/ £fi
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Answered by
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Direct method = X^- =£xifi/N
hense,
£fi= N
hense,
£fi= N
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wrong
what wrong
chl be kya likhe ja rha h sidha n ki jagah £fi ni rak sakta tha kya
its wrong
look the pic
this is in the 10 th book
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