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buying to buy selling to sell
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i= Im sin ω t i= Im sin（ω t＋90°） i= Im sin（ω t－90°） i= Im sin（ω t＋180°）.
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i=Im sin（ω t＋180°） i=Im sin（ω t－180°） i=Im sin（ω t＋90°） i=Im sin（ω t－90°)
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BMW’s emphasizes technological revolution more explicitly. Renault’s proves to be more successful. Renault’s provides more delicate messages than BMW’s. BMW’s employs the metaphor of DNA while Renault’s doesn’t.
when you will buy one how much you can afford what color you like where you are driving
i=Im sin（ω t＋180°） i=Im sin（ω t－180°) i=Im sin（ω t＋90°） i=Im sin（ω t－90°）
when you will buy one how much you can afford what color you like where you are driving
when you will buy one where you are driving what color do you like how much you can afford
don’t know didn’t know haven’t known hadn’t known
BMW’s emphasizes technological revolution more explicitly. Renault’s proves to be more successful. Renault’s provides more delicate messages than BMW’s. BMW’s employs the metaphor of DNA while Renault’s doesn’t.
e=Imsinωt e=ImωLsin（ωt+90°） e=ImωLsin（ωt-90°） e=ImωLtsinωt
BMW's emphasizes technological revolution more explicitly. Renault's proves to be more successful. Renault's provides more delicate messages than BMW's. BMW's employs the metaphor of DNA while Renault's doesn't.
don’t know didn’t know haven’t known hadn’t known
11Im1－3Im2＝ 5 11Im1＋3Im2＝5 11Im1＋3Im2＝－5 11Im1－3Im2＝－5
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