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Mathematics
Mathematics
Problem
69. If the vectors
u
\mathbf{u}
u
and
v
\mathbf{v}
v
are not parallel, prove that
a
u
+
b
v
=
c
u
+
d
v
⇒
a
=
c
,
b
=
d
a \mathbf{u}+b \mathbf{v}=c \mathbf{u}+d \mathbf{v} \Rightarrow a=c, b=d
a
u
+
b
v
=
c
u
+
d
v
⇒
a
=
c
,
b
=
d
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