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General solution for `|sinx|=cosx` is (a) `2npi+pi/4,\ n in I` (b) `2npi+-pi/4, n in 1` (c) `npi+pi/4,\ n in 1` (d) none of these

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ALLEN-TRIGONOMETRIC EQUATION-All Questions
  1. If x in [-(5pi)/2,(5pi)/2], then the greatest positive solution of 1+s...

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  2. Number of values of x in(-2pi,2pi) satisfying the equation 2^(sin^(2)...

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  3. General solution for |sinx|=cosx is (a) 2npi+pi/4,\ n in I (b) 2npi+-...

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  4. The most general value for which tantheta=-1costheta=1/(sqrt(2))i s(n ...

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  5. If cos^2x+cos^2 2x+cos^2 3x=1 then (a) x=(2n+1)pi/4,\ n in I (b) x=(2...

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  6. If 4cos^2theta+sqrt(3)=2(sqrt(3)+1) costheta, then general value of th...

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  7. (a+2)sinalpha+(2a-1)cosalpha=(2a+1)iftanalpha"i s" 3/4 (b) 4/3 (c) ...

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  8. If theta(1), theta(2), theta(3), theta(4) are roots of the equation "s...

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  9. The number of solution(s) of the equation cos2theta=(sqrt(2)+1)(cos...

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  10. Find all values of theta lying between 0 and 2 pi , satisying the e...

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  11. The value(s) of theta , which satisfy 3-2\ costheta-4sintheta-cos2thet...

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  12. Given that A ,\ B are positive acute angles and sqrt(3)\ sin2A=sin2B...

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  13. The solution(s) of 4cos^2xsinx-2sin^2x=3sinx is/are npi; n in I (b) n...

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  14. If ((1-asinx)/(1+asinx))sqrt((1+2asinx)/(1-2asinx))=1 , is where a in ...

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  15. The general solution of the following equation : 2(sinx-cos2x)-sin2...

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  16. The value(s) of theta, which satisfy the equation : 2cos^3 3theta+4=...

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  17. If x!=(kpi)/2,\ k in I and (cosx)^( sin^2x-3sinx+2=1 , then all solut...

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  18. Using four values of theta satisfying the equation 8cos^4theta+15cos...

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  19. The solution(s) of the equation cos2x sin6x=cos3x sin5x in the int...

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  20. The equation 4sin^2x-2\ (sqrt(3)+1)sinx+sqrt(3)=0 (a) 2 solution in ...

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