WHICH OF THESE IS TRUE ???

| Cos(alpha) - Cos(bets) | >= | (alpha) - (beta) |

| Cos(alpha) + Cos(bets) | >= | (alpha) - (beta) |

| Cos(alpha) - Cos(bets) | >= | (alpha) + (beta) |

| Cos(alpha) + Cos(bets) | >= | (alpha) + (beta) |

Question

WHICH OF THESE IS TRUE ???

| Cos(alpha) - Cos(bets) | >= | (alpha) - (beta) |

| Cos(alpha) + Cos(bets) | >= | (alpha) - (beta) |

| Cos(alpha) - Cos(bets) | >= | (alpha) + (beta) |

| Cos(alpha) + Cos(bets) | >= | (alpha) + (beta) |

rajan jha · Answer

take alpha= some angle(=30) and beta = some angle(=60) and then eliminate the choices and get appropriate answers this is a shortcut method for this type of questions. like my answer?

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WHICH OF THESE IS TRUE ??? | Cos(alpha) - Cos(bets) | >= | (alpha) - (beta) | | Cos(alpha) + Cos(bets) | >= | (alpha) - (beta) | | Cos(alpha) - Cos(bets) | >= | (alpha) + (beta) | | Cos(alpha) + Cos(bets) | >= | (alpha) + (beta) |

WHICH OF THESE IS TRUE ???

| Cos(alpha) - Cos(bets) | >= | (alpha) - (beta) |

| Cos(alpha) + Cos(bets) | >= | (alpha) - (beta) |

| Cos(alpha) - Cos(bets) | >= | (alpha) + (beta) |

| Cos(alpha) + Cos(bets) | >= | (alpha) + (beta) |

1 Answers

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WHICH OF THESE IS TRUE ??? | Cos(alpha) - Cos(bets) | >= | (alpha) - (beta) | | Cos(alpha) + Cos(bets) | >= | (alpha) - (beta) | | Cos(alpha) - Cos(bets) | >= | (alpha) + (beta) | | Cos(alpha) + Cos(bets) | >= | (alpha) + (beta) |

WHICH OF THESE IS TRUE ??? | Cos(alpha) - Cos(bets) | >= | (alpha) - (beta) | | Cos(alpha) + Cos(bets) | >= | (alpha) - (beta) | | Cos(alpha) - Cos(bets) | >= | (alpha) + (beta) | | Cos(alpha) + Cos(bets) | >= | (alpha) + (beta) |

1 Answers

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WHICH OF THESE IS TRUE ???

| Cos(alpha) - Cos(bets) | >= | (alpha) - (beta) |

| Cos(alpha) + Cos(bets) | >= | (alpha) - (beta) |

| Cos(alpha) - Cos(bets) | >= | (alpha) + (beta) |

| Cos(alpha) + Cos(bets) | >= | (alpha) + (beta) |