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The values of x1 between 0 and 2pi , s...

The values of `x_1` between 0 and `2pi` , satisfying the equation `cos3x+cos2x=sin(3x)/2+sinx/2` are

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
  1. If 0lt=xlt=pi/3 then range of f(x)=sec(pi/6-x)+sec(pi/6+x) is

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  2. For each natural number ngt=2, prove that sinx1cosx2+sinx2cosx3+...+si...

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  3. The values of x1 between 0 and 2pi , satisfying the equation cos3x+c...

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  4. If y=(sin^4x-cos^4x+sin^2xcos^2x)/(sin^4x+cos^4x+sin^2xcos^2x),x in (0...

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  5. In an acute angled triangle A B C ,r+r1=r2+r3a n d/B >pi/3, then (a) b...

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  6. If un=sin^("n")theta+cos^ntheta, then prove that (u5-u7)/(u3-u5)=(u3)/...

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  7. If x ,y in R and x^2+y^2+x y=1, then find the minimum value of x^3y+x...

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  8. The general solution of the equation sin^(100)x-cos^(100)x=1 is

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  9. If in triangle A B C ,sumsin(A/2)=6/5a n dsumI I1=9 (where I1,I2 a n d...

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  10. Prove that in A B C ,tanA+tanB+tanCgeq3sqrt(3,) where A , B , C are...

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  11. In triangle A B C ,/A=60^0,/B=40^0,a n d/C=80^0dot If P is the center ...

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  12. If cos3x+sin(2x-(7pi)/6)=-2 , then show that x is of the form π / 3(6...

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  13. Prove that sin2A + sin2B + sin2C = 4sinA · sinB · sin C

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  14. If H is the othrocenter of an acute angled triangle ABC whose circumci...

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  15. The number of solutions of the equation 1+cosx+cos2x+sinx+sin2x+sin3x=...

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  16. Let us consider the equation cos^4x/a+sin^4x/b=1/(a+b),x in[0,pi/2],a,...

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  17. If tanA=(1-cosB)/(sinB) , then tan2A=tanBdot

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  18. The total number of solution of cosx=sqrt(1-sin2x) in [0,2pi] is equal...

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  19. The maximum value of x^4ehat-x^2 is e^2 (b) e^(-2) (c) 12 e^(-2) (d...

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  20. Four numbers n1,n2,n3a n dn4 are given as n1=sin15^0-cos15^0,n2=cos93^...

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