Number system book Doubt | |

Q 13 - For how many integers S is S/(S-20) square of an integer. Will it include 0 (zero) also along with 18, 16, and 10. If 0, do we consider square of 0 = 0 Please guide |

Re: Number system book Doubt | |

I apologies for the typo mistake. Correct question is : For how many integers S is S/(20-S) square of an integer. |

Re: Number system book Doubt | |

method is same ans= 0, -1,+1,-2,+2,-3,+3, correct me if wrong |

Re: Number system book Doubt | |

Hi Aditya My concern remains : How S=0 will give one solution. For S=0, expression will be 0/20 = 0 (So is square of 0 is considered as 0 or square of 0 is undefined?) |

Re: Number system book Doubt | |

yes vivek even I faced the same doubt solving this problem. would request TG sir to please illuminate us with correct interpretation. rgards tarun. |

Re: Number system book Doubt | |

Hi Tarun, Yes, the square of zero is zero and it is not undefined, it does exist. |

Re: Number system book Doubt | |

Are we to include zero as the answer? |