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Given the law of cosines: A^2 = B^2 + C^2 -2*B*C*cos(theta), find angle theta (in degrees) if A=7, B=24, and C=25. Please show the math

Given the law of cosines: A^2 = B^2 + C^2 -2*B*C*cos(theta), find angle theta (in degrees) if A=7, B=24, and C=25.

Please show the math behind this. I'm struggling to rearrange the formula.

Please also show how I can enter this in matlab.

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