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Solve Trigonometric equation: sinx +cosx +sin2x=1/2.............reply fast....
 one year ago
 one year ago
Solve Trigonometric equation: sinx +cosx +sin2x=1/2.............reply fast....
 one year ago
 one year ago

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SmartWishBest ResponseYou've already chosen the best response.0
sin2x can be rewritten
 one year ago

leenajain.1996Best ResponseYou've already chosen the best response.0
ya as 2sinxcosx but what next?
 one year ago

shubhamsrgBest ResponseYou've already chosen the best response.0
2sinx + 2cos x + 4sinx cosx = 1 2sinx( 1 + 2cosx) + 2cosx = 1 2sinx(1+ 2cosx) + (1+2 cosx) =2 (1+ 2sinx)(1+2cosx) = 2
 one year ago

shubhamsrgBest ResponseYou've already chosen the best response.0
I don't have much idea next, leme see
 one year ago

leenajain.1996Best ResponseYou've already chosen the best response.0
yes thanks a lot thats absolutely fine! i got an idea to solve the question
 one year ago

shubhamsrgBest ResponseYou've already chosen the best response.0
Will you share that idea ?
 one year ago

leenajain.1996Best ResponseYou've already chosen the best response.0
2sinx=1; 2cosx=1 and further by the formulae sin theta =sin alpha and so on....
 one year ago

shubhamsrgBest ResponseYou've already chosen the best response.0
sinx and cosx both can not be 1/2 for the same value of x, you're logic is flawed.
 one year ago

shubhamsrgBest ResponseYou've already chosen the best response.0
Its quite complicated to solve this, are you sure you have the right ques ?
 one year ago

leenajain.1996Best ResponseYou've already chosen the best response.0
i know there may be some problem in the question or the expansion....wait..question is cosx+sinxsin2x=1/2 so in that way it can be solved
 one year ago

shubhamsrgBest ResponseYou've already chosen the best response.0
its easily solvable then
 one year ago

shubhamsrgBest ResponseYou've already chosen the best response.0
2cosx + 2sinx  4sinx cosx = 1 2sinx(1  2cosx) = (12cosx) =>(2sinx)(1 2cosx) =0 BAZINGA !
 one year ago

leenajain.1996Best ResponseYou've already chosen the best response.0
wow!!! thanks....i was a bit confused....thanks a lot!
 one year ago

shubhamsrgBest ResponseYou've already chosen the best response.0
Glad to have helped.
 one year ago

shubhamsrgBest ResponseYou've already chosen the best response.0
it'll be (12sinx)(1 2cosx) =0
 one year ago

leenajain.1996Best ResponseYou've already chosen the best response.0
ya i got that....k thanks bye gtg
 one year ago
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