If vector E1 and E2 are not collinear, vector a = - E1 + Ke2, B = ke1-e2, a is parallel to vector B, and the value of K is obtained

If vector E1 and E2 are not collinear, vector a = - E1 + Ke2, B = ke1-e2, a is parallel to vector B, and the value of K is obtained

If the vectors E1 and E2 are not collinear, the vectors a = - E1 + Ke2, B = ke1-e2
A is parallel to vector B
Then a = λ B
So - E1 + Ke2 = λ Ke1 - λ E2
So λ k = - 1, k = - λ
So K & # 178; = 1
k=±1
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