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सिद्ध कोजिए कि यदि f: A to B तथा g :...

सिद्ध कोजिए कि यदि `f: A to B ` तथा `g : B to C` आच्छादक है , `gof: A to C` भी आच्छादक है |

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If a : b = 2 : 3 and c : b = 5 : 6 , then a : b : c is equal to: यदि a : b = 2 : 3 तथा c : b = 5 : 6 है, तो a : b : c का मान ज्ञात करें |