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Find the general solution for each of th...

Find the general solution for each of the following equations :
`4sinxcosx+2sinx+2cosx+1=0`

Text Solution

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The correct Answer is:
`x=npi+(-1)^(n)-(pi)/(6)ORx=2pi(npm(1)/(3)),ninZ`
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KUMAR PRAKASHAN-TRIGONOMETRIC FUNCTIONS -PRACTICE WORK
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  14. In DeltaABC,(b+c)/(11)=(c+a)/(12)=(a+b)/(13) then prove that (cosA)/(7...

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  15. In DeltaABC, if cosA=(sinB)/(2sinC) then show that DeltaABC is an isos...

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  16. In DeltaABC, if A=45^(@),B=60^(@)andC=75^(@) then find the ratio of it...

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  17. The angles of DeltaABC are in A.P. if b:c=sqrt(3):sqrt(2) then find an...

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  18. For DeltaABC prove that, (a-b)^(2)cos^(2)""(C)/(2)+(a+b)^(2)sin^(2)"...

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  20. Prove that, 2(asin^(2)((C)/(2))+csin^(2)((A)/(2)))=c+a-b

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