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and 
are given.
and 
are given on a plane.
on the vector 
.
and 
are given.
.
and 
are given.
.
so that the vectors 
and 
are of the same length.
is equal to 
.
of length 
cm. Draw the vector 
if 
.
of length 4cm. Draw the vector 
if 
.
of length 4cm. Draw the vector 
if 
.
