If in a triangle ABC B = 60 degrees and sinA.sinC = ∂ . Find all possible values of ∂.
If in a triangle ABC B = 60 degrees and sinA.sinC = ∂ . Find all possible values of ∂.
Kaustubh Nayyar , 11 Years ago
Grade 11
Trigonometry> If in a triangle ABC B = 60 degrees and s...
1 AnswersRavi
Express C=120-A and solvesinA.sinC = ∂ to get the trigonometric solution of the eqn.
One such solution I got was a single trigonometric ratio , namely Cos(2A+60)=1/4-2∂
As -1<=Cos(2A+60)<=1
Using this inequality, you can get the values/ range of∂.
One such solution I got was a single trigonometric ratio , namely Cos(2A+60)=1/4-2∂
As -1<=Cos(2A+60)<=1
Using this inequality, you can get the values/ range of∂.
Approved Last Activity: 11 Years ago
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