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In DeltaABC,BC=1,sin.(A)/2=x1,sin.(B)/2=...

In `DeltaABC,BC=1,sin.(A)/2=x_1,sin.(B)/2=x_2,cos.(A)/2=x_3andcos.(B)/2=x_4" with "(x_1/x_2)^2007-(x_3/x_4)^2006=0`
If `angleA=90^@`, then area of `DeltaABC` is

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
  1. If in a Delta ABC, cosA+ cosB + cosC =3/2. Prove that DeltaABC is an e...

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  2. Let alpha,beta,gamma>0a n dalpha+beta+gamma=pi/2dot Then prove that sq...

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  3. In DeltaABC,BC=1,sin.(A)/2=x1,sin.(B)/2=x2,cos.(A)/2=x3andcos.(B)/2=x4...

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  4. The number of solution of sin^4x-cos^2xsinx+2sin^2x+sinx=0in0lt=xlt=3p...

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  5. The exradii r1,r2 and r3 of /\A B C are in H.P. Show that its side...

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  6. Solve 7cos^2theta+3sin^2theta=4

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  7. If sintheta+costheta=1/5"and"0 le theta ltpi, thentantheta is

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  8. 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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  9. The exradii r1,r2 and r3 of /\A B C are in H.P. Show that its sides a...

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  10. Find the number of roots of the equation tan(x+pi/6)=2tanx ,forx in (0...

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  11. 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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  12. If x=(2sintheta)/(1+costheta+sintheta),t h e n(1-costheta+sintheta)/(1...

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  13. C F is the internal bisector of angle C of A B C , then C F is equal ...

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  14. Solve the equation 2(cos x+cos2x)+sin2x(1+2cos x)=2sinx for (-pilt=xlt...

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  15. Which of the following is not the quadratic equation whose roots are c...

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  16. If A+B+C=pi, prove that (tanA)/(tanBdottanC)+(tanB)/(tanAdott a n C...

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  17. In triangle ABC, line joining the circumcenter and orthocenter is para...

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  18. Solve 8sinx=(sqrt(3))/(cosx)+1/(sinx)

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  19. If cos e ctheta-cottheta=q , then the value of cos e ctheta is (a)q...

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  20. If A+B+C=pi , prove that cotA+cotB+cotC-cos e cAdotcos e cBdotcos e cC...

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