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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
- In triangleABC (b+c)/11=(c+a)/12=(a+b)/13 then prove that (cosA)/7=(co...
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- alpha,beta,gammaand delta are angles in I,II,II and IV quadrants, resp...
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- Solution of the equation sin(sqrt(1+sin2theta))=sintheta+costhetai s(n...
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- If in triangle ABC cosA+cosB+cosC=3/2 then prove that triangle is equi...
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- Let alpha,beta,gamma>0a n dalpha+beta+gamma=pi/2dot Then prove that sq...
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- In DeltaABC, if BC is unity, sin(A/2)=x1,sin(B/2)=x2,cos(A/2)=x3,cos(B...
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- Number of solutions of the equation sin^4x-cos^2xsinx+2sin^2x+sinx=0in...
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- The ex-radii r1,r2,r3 or Delta ABC are in H.P. Show that its sides a,...
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- Solve 7cos^2theta+3sin^2theta=4
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- If sintheta+costheta=1/5"and"0 le theta ltpi, thentantheta is
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- In A B C Prove that cos^2A/2+cos^2B/2+cos^2C/2lt=9/4dot If cos^2A/2...
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- The exradii r1,r2 and r3 of /\A B C are in H.P. Show that its sides a...
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- Find the number of roots of the equation tan(x+pi/6)=2tanx ,forx in (0...
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- In triangle A B C , prove that cos e c A/2+cos e c B/2+cos e c C/2geq...
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- If x=(2sintheta)/(1+costheta+sintheta),t h e n(1-costheta+sintheta)/(1...
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- C F is the internal bisector of angle C of A B C , then C F is equal ...
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- Solve the equation 2(cos x+cos2x)+sin2x(1+2cos x)=2sinx for (-pilt=xlt...
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- Which of the following is not the quadratic equation whose roots are c...
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- If A+B+C=pi, prove that (tanA)/(tanBdottanC)+(tanB)/(tanAdott a n C...
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- In triangle ABC, line joining the circumcenter and orthocenter is para...
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