another DS question | |

Can anybody throw some light on below problem , If Z ^N = 1 , what
is the value of Z ? 1) N is a non zero integer . 2) Z > 0. |

Re: another DS question | |

From first condition, N is a non zero integer. This means that Z can only be 1. Only then any power of Z will result in 1 as the result. |

Re: another DS question | |

correct answer choice should be "c" because only first choice implies that z can be either-1 or +1 |