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If theta is a positive acute angle and ...

If `theta` is a positive acute angle and
`sec theta =(m^2+1)/(2m)` find `tan theta and cosec theta`

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The correct Answer is:
`(m^2-1)/(2m) and (m^2+1)/(m^2-1)`
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CHHAYA PUBLICATION-TRIGONOMETRIC RATIOS [OR FUNCTIONS] OF POSITIVE ACUTE ANGLES-EXERCISE 2
  1. The angle A of the triangle ABC is obtuse, if sec(B+C)=cosec (B-C)=2,...

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  2. If theta is a positive acute angle and tan theta=3/4, find sin theta...

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  3. If theta is a positive acute angle and sec theta =(m^2+1)/(2m) find ...

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  4. If theta is a positive acute angle and cos theta=(15)/(17) , find th...

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  5. If A and B are positive acute angles and sinA =3/5,cosB=(15)/(17) , fi...

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  6. If tantheta =a/b, find the value of (bcostheta-asintheta)/(b cos theta...

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  7. If cos theta +sec theta=sqrt(3), show that, cos^3theta+sec^3theta=0 .

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  8. Express 1+4cosec^2alphacot^2alpha in the form of a perfect square.

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  9. If 3cos alpha-4sinalpha=5, show that, 3sinalpha+4cosalpha=0 .

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  10. If sinalpha=x and tan alpha=y, prove that, 1/x^2-1/y^2=1.

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  11. If tan alpha+cotalpha=2, show that, tan^7alpha+cot^7alpha=2.

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  12. If an=sin^n theta+cosec^ntheta and a1=2 prove that, an=2 .

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  13. If cosalpha+secalpha=2, show that cos^3alpha+sec^3alpha=2.

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  14. If x=rcos thetacosphi,y=rcosthetasinphi and z=r sin theta, show that ,...

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  15. If x=asec thetacosphi,y=bsec thetasin phi and z=ctantheta, show that, ...

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  16. If x=cosec theta -sin theta and y=sec theta-cos theta, then show that ...

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  17. Prove the following identities: (sec theta-tan theta+1)/(sec theta+t...

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  18. Prove the following identities: (sin theta-cos theta+1)/(sin theta+co...

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  19. Prove the following identities: 1/(secA-tanA)-1/(cosA)=1/(cosA)-1/(s...

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  20. Prove the following identities: (1-sin alpha+cosalpha)^2=2(1+cos alp...

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