Mathematics, 07.05.2020 03:59, deku6

HELP PLS>>> The vector (3, - 7) ) is rotated by an angle of (3pi)/4 radians and then reflected across the y-axis. If the resulting vector is [a/b], then a= and b=

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HELP PLS>>> The vector (3, - 7) ) is rotated by an angle of (3pi)/4 radians and then reflec...