trig

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U=5i+11j and V=2i-3j, find 2U-7U

  • TYPO -

    not sure you mean that

  • trig -

    thats the problem i have..? the answers may be: 24i+43, -4i+j, -4i+43j, or 24i+j

  • trig -

    2U-7U

    must be a TYPO
    maybe 2 U - 7V ?
    or 2V - 7 U ???

  • trig -

    its 2U-7V

  • trig -

    2 U = 10 i + 22 j

    7 V = 14 i - 21 j
    ----------------- subtract for 2 U - 7 V
    = -4 i + 1 j
    but I have no idea if that is what you want. Please repair typo.

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