# Solution - Trigonometric Functions - Solution of a Triangle

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#### Question

In ΔABC, prove that : tan((a-b)/2)=(a-b)/(a+b)cotC/2

#### Solution

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In ΔABC with usual notations, prove that 2a {sin^2(C/2)+csin^2 (A/2)} = (a +   c - b)

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Solution for concept: Trigonometric Functions - Solution of a Triangle. For the courses 12th HSC Arts, 12th HSC Science (Computer Science), 12th HSC Science (Electronics), 12th HSC Science (General)
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