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Question-9970




Question Number 9970 by Tawakalitu ayo mi last updated on 19/Jan/17
Answered by mrW1 last updated on 19/Jan/17
the result is a zero vector or null vector (0^→ ).  a zero or null vector has no magnitude.
$${the}\:{result}\:{is}\:{a}\:{zero}\:{vector}\:{or}\:{null}\:{vector}\:\left(\overset{\rightarrow} {\mathrm{0}}\right). \\ $$$${a}\:{zero}\:{or}\:{null}\:{vector}\:{has}\:{no}\:{magnitude}. \\ $$
Commented by Tawakalitu ayo mi last updated on 19/Jan/17
please workings
$$\mathrm{please}\:\mathrm{workings} \\ $$
Commented by mrW1 last updated on 19/Jan/17
BC^(→) +CA^(→) =BA^(→) =−AB^(→)   BC^(→) +CA^(→) +AB^(→) =−AB^(→) +AB^(→) =0^→
$$\overset{\rightarrow} {{BC}}+\overset{\rightarrow} {{CA}}=\overset{\rightarrow} {{BA}}=−\overset{\rightarrow} {{AB}} \\ $$$$\overset{\rightarrow} {{BC}}+\overset{\rightarrow} {{CA}}+\overset{\rightarrow} {{AB}}=−\overset{\rightarrow} {{AB}}+\overset{\rightarrow} {{AB}}=\overset{\rightarrow} {\mathrm{0}} \\ $$
Commented by Tawakalitu ayo mi last updated on 19/Jan/17
God bless you sir.
$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir}. \\ $$

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