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Eamcet Mathematics
Trigonometry Properties of Triangles

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In a traingle ABC, (1+cos(A - B)cos c)/(a+cos(A - C)cosB)

A. (a - b)/(a - c)

B. (a + b)/(a + c)

C. (a² - b²)/(a² - c²)

D. (a² + b²)/(a² + c²)

E. None of the above

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Correct choice: D

Explanation:

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Eamcet Mathematics Trigonometry Properties of Triangles

Eamcet Mathematics
Trigonometry Properties of Triangles