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IfD_(30) is the set of all divisors of 30 , x,y in D_(30), we definex+y=LCM(x,y),x*y=GCD(x,y), x'=(30)/(x) and f(x,y,z)=(x+y)*(y'+z), then f(2,5,15) is equal to |
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Answer» Solution :`D_(30)={1,2,3,5,6,10,15,30}` `F(2,5,5_=2+5)*(5'+15)` `10*((30)/(5)+15)` `=10(6+15)` `10*30` `=10` |
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