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sqrt((1-cos^(2)theta)sec^(2)theta)=tan t...

`sqrt((1-cos^(2)theta)sec^(2)theta)=tan theta`

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(1-cos^2theta)sec^2 theta= tan^2 theta

Prove the following identities: sqrt(sec^(2)theta+cos ec^(2)theta)=tan theta+cot theta

Prove that sqrt((1-cos2 theta)/(1+cos2 theta))=tan theta where tan theta>0

Prove that sqrt((1-cos2 theta)/(1+cos2 theta))=tan theta where tan theta>0

(1+2sin theta+sin^(2)theta)/(cos^(2)theta)=(sec theta+tan theta)/(sec theta-tan theta)

tan(2tan^(-1)sqrt((1+cos theta)/(1-cos theta)))+tan theta=0

Prove that (tan^(3)theta)/(1+tan^(2)theta)+(cot^(3)theta)/(1+cot^(2)theta)=sec theta cos ec theta-2sin theta cos theta

Prove: (tan^(3)theta)/(1+tan^(2)theta)+(cot^(3)theta)/(1+cot^(2)theta)=sec theta cos ec theta-2sin theta cos theta

Prove that sqrt(1+sin theta)/sqrt(1-sin theta)=sec theta + tan theta ,-(pi)/(2) lt theta lt (pi)/(2)

1+(tan^(2)theta)/((1+sec theta))=sec theta

NCERT EXEMPLAR-INTRODUCTION TO TRIGoNOMETRY AND ITS APPLICATIONS-Introduction To Trigonometry And Its Applications
  1. The value of the expression (cos^(2)23^(@)-sin^(2)67^(@)) is

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  2. The value of the expression (sin80^(@)-cos80^(@)) is negative.

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  3. sqrt((1-cos^(2)theta)sec^(2)theta)=tan theta

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  4. If cosA+cos^2A=1 , then sin^2A+sin^4A= -1 (b) 0 (c) 1 (d) None of ...

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  5. (tantheta+2)(2 tantheta+1)= ?

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  6. If the length of the shadow of a tower is increasing, then the angle o...

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  7. If a man standing on a platform 3 m above the surface of a lake observ...

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  8. The value of 2sintheta can be a+1/a, where a is a positive number and ...

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  9. costheta=(a^(2)+b^(2))/(2ab), where a and b are two distinct numbers s...

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  10. The angle of elevation theta of the top of a tower is 30^(@). If the h...

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  11. If the height of a tower and the distance of the point of observation ...

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  12. Prove that (sintheta)/(1+costheta) + (1+costheta)/(sintheta) = 2 cosec...

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  13. (tanA)/(1+secA) - (tanA)/(1-secA) = 2cosecA

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  14. If tan A=3/4, then sinAcosA =.

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  15. (sinalpha + cosalpha)(tanalpha + cotalpha) = secalpha + cosecalpha

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  16. Prove that (sqrt(3)+1)(3-cot30^@)=tan^3(60)^@-2sin60^@

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  17. Show that 1+cot^2alpha/(1+cosecalpha)=cosec alpha

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  18. tantheta+tan(9 0^(@)-theta)=secthetaxxsec(9 0^(@)-theta)

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  19. Find the angle of elevation of the Sun when the shadow of a pole h m ...

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  20. If sqrt(3)tantheta=1 then find value of sin^2theta-cos^2theta

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