find the equation of the form sin 2 x+bsinxcosx+c cos 2 x+d=0

find the equation of the form sin2x+bsinxcosx+c cos2x+d=0


1 Answers

Anil Pannikar AskiitiansExpert-IITB
85 Points
11 years ago

Dear ,

  Its a quadratic eq. of sinx like  asin2x + bsinx + c =0

Sol. of ax2+bx + c =0 is x =[-b - √b2-4ac]/2a  and [-b + √b2-4ac]/2a

So, solution is -

 sinx  = [ -bcos + √b2cos2x - 4c(cos2x + d ) ]/2  and  sinx  = [ -bcos - √b2cos2x - 4c(cos2x + d ) ]/2


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Askiitians Expert

Anil Pannikar

IIT Bombay

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