Question

if a vector is a unit vector perpendicular to b vector and (a vector +3 b vector) (2 a vector - b vector ) =-10 then b vector is

Answer 1

Step-by-step explanation:

(a + 3b)(2a - b) = -10

2a² - ab + 6ab - 3b² = -10

2a² + 5ab - 3b² = -10

Now, you can easily find the answer

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