<prompt> Tafuta pembe kati ya vekta anzapmatrix 5 -3 -4 mwishopmatrix na anzapmatrix 0 -7 -1 mwishopmatrix, katika digrii.  <response>: Ikiwa theta ni pembe kati ya vekta, basicos theta fracanzapmatrix 5 -3 -4 mwishopmatrix cdot anzapmatrix 0 -7 -1 mwishopmatrix kushoto anzapmatrix 5 -3 -4 mwishopmatrix kulia kushoto anzapmatrix 0 -7 -1 mwishopmatrix kulia frac50 -3-7 -4- 1sqrt50 cdot sqrt50 frac2550 frac12.Kwa hivyo, theta 60circ. 