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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
- The exradii r1,r2 and r3 of /\A B C are in H.P. Show that its side...
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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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- Solve 8sinx=(sqrt(3))/(cosx)+1/(sinx)
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- If cos e ctheta-cottheta=q , then the value of cos e ctheta is (a)q...
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- If A+B+C=pi , prove that cotA+cotB+cotC-cos e cAdotcos e cBdotcos e cC...
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- Let D be the middle point of the side B C of a triangle A B Cdot If th...
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- Solve 2tantheta-cottheta=-1
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- If sec^4theta+sec^2theta=10+tan^4theta+tan^2theta, then sin^2theta= 2...
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- If cos(A+B+C)=cosAcosBcosC , then find the value of (8sin(B+C)sin(C+A)...
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