Mathematics
Senior High
Resolved
問5の答えを2問とも教えてください🙇
証明 右の図において
la=OP2=OQ2+QP2
=OP12+P,Q2+QP2
=
OP2 + OP22 + OP32
=
5
ai2+a2+ag
2
よって
|a|= √√a₁²+a₂²+az²
2
2
2
問5 次のベクトルの大きさを求めよ。
(1) a = (3, 2, 6)
(ed
as
xP1
ZA
a3 P3
a
P
Q
(2)万= (-5,4,2)
a2
P2
y
Answers
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