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Math Help - Proof

  1. December 7th 2009, 03:09 PM #1
    lm6485
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    Exclamation Proof

    Let T_1 and T_2 be invertible transformations of R_n to R_n. Prove that T_2 o T_1 is invertible with inverse T_-1 o T_-2
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  2. December 8th 2009, 03:10 AM #2
    Chandru1
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    answer

    Hi--

    I give you the idea behind the proof. Just prove T_{2} \circ T_{1} is one-one.
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