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anonymous
 3 years ago
If 8ij=7i+kj (vectors), find two possible values for k belongs to R. Answers: +4, 4. How?
anonymous
 3 years ago
If 8ij=7i+kj (vectors), find two possible values for k belongs to R. Answers: +4, 4. How?

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amistre64
 3 years ago
Best ResponseYou've already chosen the best response.0becasue it is asking for the length of the vectors to be equal

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0@amistre64 I need step by step how to do it... I undestand why it is +4 and 4

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.0\[8^2+1^2=7^2+k^2\] \[8^2+1^27^2=k^2\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Oooooooooh my God! It's that simple! Thank you very much!
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