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Maths Puzzle
If a+ (1)/a+2 =0, then value of (a+2)^3 +(1)/(a+2)^3 is
Read Solution (Total 1)
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- ans is 8 becoz we know that a^3+b^3=(a+b)+3ab(a+b)
by using this (a+2)^3+(1)/(a+2)^3={a+2+(1)/(a+2)}+3*(a+2)*(1)/(a+2){(a+2)+(1)/(a+2)}
=>by puttinf a+(1)/a+2=0
we get {2+0}+3*(2+0)
=>8 - 12 years agoHelpfull: Yes(0) No(3)
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