Questions
The number of integers such that and is
detailed solution
Correct option is D
Put x=a−1,y=b−1,z=c−1,w=d−1then a,b,c,d≥0 and (a−1)+(b−1)+(c−1)+(d−1)=20⇒ a+b+c+d=24The number of non-negative integral solutions of this equationis 24+4−1C4−1=27C3Similar Questions
The number of positive integral solutions satisfying the equation is
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