For r=0,1,…,10, ifAr,Br andCr denote respectively the coefficient ofxr in the expansions .... VIDEO
For r=0,1,…,10, ifAr,Br andCr denote respectively the coefficient ofxr in the expansions of(1+x)10,(1+x)20 and (1+x)30. Then,∑r=110ArB10Br-C10Ar is equal to š²PW App Link - https://bit.ly/YTAI_PWAP šPW Website - https://www.pw.live
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