In the plane rectangular coordinate system, it is known that the two ends of the line AB are a (- 4, - 1), B (1,1), respectively. After translating the line AB, we get the line a ′ B ′ If the coordinate of a 'is (- 2,2), then the coordinate of B' is ()

In the plane rectangular coordinate system, it is known that the two ends of the line AB are a (- 4, - 1), B (1,1), respectively. After translating the line AB, we get the line a ′ B ′ If the coordinate of a 'is (- 2,2), then the coordinate of B' is ()


If the coordinate of a 'is (- 2,2), then the coordinate of B' is (3,4)



Given that P (2, - 3) is a point on the terminal edge of angle a, then what is Tan (2 + a)


tan(2π+a)=tan(a)
In the coordinate system: Tan (a) = Y / x = (- 3) / 2 = - 3 / 2
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