t/web/Student/Assignment-Responses/submit?dep=29918707&tags=autosave#Q7 Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.) a = (2, 2), b = (3, -1) exact approximate Need Help? Read It Watch It Submit Answer 8. [-/8.33 Points] DETAILS SCALCET8 12.3.019. MY NOTES ASK Find the angle between the vectors. (First find an exact expression of the cosine angle and then the approximate angle to the nearest degree.) a = 31 - 4j + k, b = 9i - k exact approximate Need Help? Read It Watch It 9. [0/8.33 Points] DETAILS PREVIOUS ANSWERS SCALCET8 12.3.022. MY NOTES ASK YO Find, correct to the nearest degree, the three angles of the triangle with the given vertices. . A(1, 0, -1), B(5, -5, 0), C(1, 3 , 2 ) CAB = 113.8 X o