Mathematics
Senior High

座標で表さなくても他の矢印で表せば内積は求められるのでしょうか

解答 OA=4,OB=6 とおくと -a+g, BP=-6- + AQ== a + AQ-BP = (-a + 4).(-6+4) 2 Tāl² 161² 2 3 3 + 7→ + ·a.b 81 2 =2/06-105 7→ a.b 36 3 A 9 P B 6

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