Vector problem
It is given that OP = 5i+3j and OQ=-3i+j. PRQ is a straight.
(a) find PQ and |PQ|.
i've done this part,
PQ = -8i-2j; |PQ| = 2sqrt(17)
(b) if|PR| =sqrt(17), find PR
I think it is (1/2)PQ, that is -4i-j, but how can i present it in a better way?

Question

Vector problem
It is given that OP = 5i+3j and OQ=-3i+j. PRQ is a straight.
(a) find PQ and |PQ|.
      i've done this part,
      PQ = -8i-2j; |PQ| = 2sqrt(17)
(b) if|PR| =sqrt(17), find PR
     I think it is (1/2)PQ, that is -4i-j, but how can i present it in a better way?

amistre64 · Answer

prq is a straight?

amistre64 · Answer

-3+1
-5-3
----
-8-2; sqrt(68)  all that looks good

callisto · Answer

my question is actually.. in part B.. i don't  know how to present it.

amistre64 · Answer

what is a straight?

callisto · Answer

sorry i missed a word it should be straight line

amistre64 · Answer

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