Answer to Question #41308 in Physics for promise

Question

Three coplanar vectors are expressed, with respect to a certain rectangular coordinate sysytem as
Missing argument for superscript
,
Missing argument for superscript
,
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, in which the components of these vectors are given in arbitrary units. Find the vector
r⃗
which is the sum of these vectors.
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with magnitude
5√
at
3o
to the x-axis
Missing argument for superscript
with magnitude
5√
at
297o
to the x-axis
Missing argument for superscript
with magnitude
5√
at
297o
to the x-axis
Missing argument for superscript
with magnitude
5√
at
73o
to the x-axis