(cosA-cosB)2 + (sinA-sinB)2 = 4sin2(A+B/2)

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This answer is categorized in the subject Math and for level Primary School. 12 students answered this yesterday from cities such as Vārānasi, Uran and Srīnagar.

Question

(cosA-cosB)2 + (sinA-sinB)2 = 4sin2(A+B/2)

Answer

It’s a good answer for the students

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