Mathematics
Senior High

これの(4)の答えが x=0 , 3 なのですが、どう解いても答えがあいません。解き方教えてください

(5) a = (4, 2), b = (-2, 4) 118 次の2つのベクトルが垂直になるようなxの値を求 (1) a = (1, -2), b = (x, 4) (2)* a = (x, 2), b = (3, x-5) → (3) a = x+4), b = (x, x+2) →>>>> a = (2x+1, x), b =(x, -3x+2) (3,

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