if tan(a+b-c)/tan(a-b+c)=tana/tanb then prove that sin2a+sin2b+sin2c=0
Gurjar Deepak , 3 Years ago
Grade 11
Trigonometry> if tan(a+b-c)/tan(a-b+c)=tana/tanb then p...
1 AnswersYuvraj Singh
Last Activity: 2 Years ago
Q:if tan(a+b-c)/tan(a-b+c)=tana/tanb then prove that sin2a+sin2b+sin2c=0
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