The coordinate of the point P (1,2) with respect to the y-axis symmetry is the same as that of the point P (1,2)______ ．

The coordinate of the point P (1,2) with respect to the y-axis symmetry is the same as that of the point P (1,2)______ ．

The coordinates of the point P (1,2) which is symmetric about the y-axis are (- 1,2). If you translate the point down three units of length, the coordinates with you are (- 1, - 1)

If the image y = sin (2x + 4 π / 3) is shifted to the right by X (x is greater than 0) unit length, then the minimum value of X is?

Y = sin (x + 2K π) about Y-axis symmetry
So just convert to this form
Moving to the right is subtraction (suppose moving a unit)
therefore
2（x-a）+4π/3=2x+2kπ
a=2π/3

If point P (a, b) is translated 2 unit lengths to the left and 3 unit lengths to the up, the coordinates are (- 2, - 2), then a = B=

The point P (a, b) is shifted 2 unit lengths to the left to get p '(A-2, b), and then the coordinate is p "(A-2, B + 3), that is (- 2, - 2),
Then there are: A-2 = - 2, B + 3 = - 2
Then a = 0, B = - 5