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HBK #1 AKA. HBKISLIFE
Lv 5
HBK #1 AKA. HBKISLIFE asked in Science & MathematicsMathematics · 1 decade ago

VECTORS PROBLEM! PLEASE HELP!?

AB = a + tb and CD = a + (3t – 5)b where t is a number.

Find the value of t when AB = CD .

I need a step by step answer please.

Thanks!

1 Answer

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  • Dontclickthis
    Lv 6
    1 decade ago
    Favorite Answer

    if AB = CD

    then

    a + tb = a + (3t - 5)b

    → tb = (3t - 5)b

    → t = (3t - 5)

    → -2t = -5

    → t = 5/2

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