Question: Find a.b.|a| = 20, |b| = 70, the angle between a and b is 3?/4. Find a b. lal = 20, Ibl = 70, the

Find a b. lal = 20, Ibl = 70, the angle between
a and b is 4

Find a.b.|a| = 20, |b| = 70, the angle between a and b is 3?/4.

Find a b. lal = 20, Ibl = 70, the angle between a and b is 4

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