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I think there might be a mistake at 18:51. The question asks the incl. on line BC, but the gradient of line AN was accidentally used.
Coordinates of C(3;-2) there must be a mistake there the ,the gradient of DC is equal to -3
I think there might be a mistake at 18:51. The question asks the incl. on line BC, but the gradient of line AN was accidentally used.
Coordinates of C(3;-2) there must be a mistake there the ,the gradient of DC is equal to -3