Скачать или смотреть RATIO AND PROPORTION CLASS 10 WEST BENGAL BOARD

Welcome to our latest video where we dive deep into the captivating world of ratio and proportion class 10 west bengal board .
if a:b=c:d let us show that
(i) (a2+b2):(a2-b2)=(ac+bd)(ac-bd)
(ii)(a2+ab+b2):(a2-ab+b2)=(c2+cd+d2):(c2-cd+d2)

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