Let ABCDEF be a regular hexagon.If AD=xBC and CF=yAB, then xy= ?
Bita Antil , 6 Years ago
Grade 12
Vectors> Let ABCDEF be a regular hexagon.If AD=xBC...
1 Answers
Arun
Last Activity: 6 Years ago
given AB =a
BC =b here a and b are vector
EF=-b
DE=-a
and we know that AD=2BC
=2b
AD=AB+BC+CD
2b =a+b+CD
CD =b-a
and FA=-CD
=a-b
Ac=AB+BC
=a+b
AF=CD=b-a
and CF=2DE
=-2a
BC =b here a and b are vector
EF=-b
DE=-a
and we know that AD=2BC
=2b
AD=AB+BC+CD
2b =a+b+CD
CD =b-a
and FA=-CD
=a-b
Ac=AB+BC
=a+b
AF=CD=b-a
and CF=2DE
=-2a
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