in angle ABC , if 1/a+b +1/b+c=3/a+b+cthen show that C=60
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Given :
In angle ABC,
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To Prove :
• C =60 degrees
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Formulas :
By cosine Rule :
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Solution :
In a given ABC
•The value of c is 60 degree .
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Formulas :
Consider a triangle ABC with sides a, b, and c.
Sine Rule:
• For Finding sides :
• For Finding Angles :
Cosine Rule:
• For finding sides :
• For finding Angles :
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