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Prove that : (sinthetacos(90^0-theta)cos...

Prove that : `(sinthetacos(90^0-theta)costheta)/(sin(90^0-theta))+(costhetasin(90^0-theta)sintheta)/(cos(90^0-theta))=1` `cos e c^2(90^0-theta)-tan^2theta=cos^2(90^0-theta)+cos^2theta`

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sin theta cos(90^(@)-theta)+cos theta sin(90^(@)-theta)

sin theta cos(90^@ -theta) +cos theta sin(90^@ -theta) = ?

Evaluate sinthetacos(90^(@)-theta)+costhetasin(90^(@)-theta) .

Prove that (cos theta cos(90^(@)-theta))/(cot(90^(@)-theta))=cos^(2)theta

Prove that ("cos"(90^0+theta)"sec"(-theta)"tan"(180^0-theta))/("sec"(360^0-theta)"sin"(180^0+theta)"cot"(90^0-theta))=-1.

Write the value of sintheta cos(90^(@)-theta)+costheta sin(90^(@)-theta).

Prove that (cos(90^(0)+theta)sec(-theta)tan(180^(@)-theta))/(sec(360^(@)-theta)sin(180^(@)+theta)cot(90^(@)-theta))=-1

Prove that (cos(90^(@)+theta)sec(-theta)tan(180^(@)-theta))/(sec(360^(@)-theta)sin(180^(@)+theta)cot(90^(@)-theta))=-1

(tan(90^@-theta) cot theta)/(cosec^2 theta)-cos^2 theta=0

Prove that (cos(90^(@)-theta))/(1+sin(90^(@)-theta))+(1+sin(90^(@)-theta))/(cos(90^(@)-theta))=2cosec theta

RD SHARMA-TRIGONOMETRIC IDENTITIES-All Questions
  1. Prove the trigonometric identities: sqrt((1-costheta)/(1+costheta))=co...

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  2. If sectheta=x+1/(4x) ,prove that :sectheta+tantheta=2xor ,1/(2x)

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  3. Prove that : (sinthetacos(90^0-theta)costheta)/(sin(90^0-theta))+(cost...

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  4. If sectheta+tantheta=x , obtain the values of sectheta,t a ntheta and...

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  5. If sintheta+sin^2theta=1,find the value of cos^(12)theta+3cos^(10)t...

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  6. If sintheta+sin^2theta+sin^3theta=1, then prove that cos^6theta-4cos^4...

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  7. If cottheta+tantheta=x and sectheta-costheta=y , prove that (x^2y)^(...

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  8. If acostheta-bsintheta=c, then prove that: asintheta+bcostheta=+-sqr...

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  9. Prove the following identities: (sintheta+cos e ctheta)^2+(costheta+s...

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  10. Prove the following identities: (sintheta)/(1-costheta)+(tantheta)/(1...

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  11. Find (1 + tantheta + sectheta)(1+ cottheta - cosectheta)

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  12. Prove the following identities: 1/(cos e cA-cotA)-1/(sinA)=1/(sinA)-1/...

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  13. Prove the following trigonometric identities: (sintheta)/(1-costheta)=...

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  14. Prove the following trigonometric identities: sqrt((1-sintheta)/(1+sin...

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  15. Prove the following identities: (1-sintheta)/(1+sintheta)= (sectheta...

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  16. If cos e ctheta-sintheta=l and sectheta-costheta=m , prove that l^2m^2...

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  17. If tanA=ntanB and sinA=msinB, prove that cos^2A=[m^2-1]/[n^2-1]

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  18. If x=asinthetaa n dy=btantheta, then prove that (a^2)/(x^2)-(b^2)/(y^2...

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  19. If (cosalpha)/(cosbeta)=m and (cosalpha)/(sinbeta)=n show that (m^2+n^...

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  20. Prove the following identities: cos^4A-cos^2A=sin^4A-sin^2A

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