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If sin A + Sin² A=1 and a cos 12 A+b cos 8 A+c cos 6 A-1=0 then b+ c/a+b=?

If sin A + Sin² A=1 and a cos12 A+b cosA+c cos6 A-1=0 then b+c/a+b=?
 

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Grade:10

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
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