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CENGAGE-TRIGONOMETRIC FUNCTIONS-Solved Examples And Exercises
- In triangle A B C ,tanA+tanB+tanC=6a n dtanAtanB=2, then the values o...
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- If 2cosx+sinx=1, then find the value of 7cosx+6sinxdot
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- If sinx+sinygeqcosacosxAA in R , then siny+cosa is equal to
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- If alpha,beta,gamma are acute angles and costheta=sinbeta//sinalpha,co...
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- Find the values of xa n dy for which cosec theta=(x^2-y^2)/(x^2+y^2) i...
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- The set of all x in the interval [0,pi] for which 2sin^2x-3sinx+1geq0 ...
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- If in a triangle (1-(r1)/(r2))(1-(r1)/(r3))=2 then the triangle is rig...
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- sum(n=1)^ootan(theta/(2^n))/(2^(n-1)cos(theta/(2^(n-1))))
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- A parallelogram containing a 60^0 angle has perimeter p and its longer...
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- If r/(r1)=(r2)/(r3), then A=90^0 (b) B=90^0 C=90^0 (d) none of the...
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- If sin(sinx+cosx)=cos(cosx-sinx), and largest possible value of sinxi ...
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- If 0lt=xlt=pi/3 then range of f(x)=sec(pi/6-x)+sec(pi/6+x) is (a)(4...
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- The values of x1 between 0 and 2pi , satisfying the equation cos3x+c...
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- If y=(sin^4x-cos^4x+sin^2xcos^2x)/(sin^4x+cos^4x+sin^2xcos^2x),x in (0...
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- In an acute angled triangle A B C ,r+r1=r2+r3a n d/B >pi/3, then b+2c...
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- If un=sin^("n")theta+cos^ntheta, then prove that (u5-u7)/(u3-u5)=(u3)/...
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- 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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- The general solution of the equation sin^(100)x-cos^(100)x=1 is 2npi+p...
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- If in triangle A B C ,sumsinA/2=6/5a n dsumI I1=9 (where I1,I2a n dI3 ...
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- Prove that in A B C ,tanA+tanB+tanCgeq3sqrt(3,) where A , B , C are...
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