2. If is the angle between two non zero vectors u and v, where 0° s 0 s 180° then: cos 0 = U.V |ul|v| Find the angle 8 between the two vectors. a. u=<7, -1> and v= <2, 2> b. u= <2, 10> and v= <5, -2> c. u= <2,-6> and v= < 6, 2>

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