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If theta lies in third Quardrant and Sin...

If `theta` lies in third Quardrant and `Sintheta=(-4)/5`. Find the values of `" cosec "(theta/2)and Tan(theta/2)`

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The correct Answer is:
`cosec""theta/2=sqrt(10/8)`
`tan""theta/2=2`
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-TRIGONOMETRIC RATIOS UPTO TRANSFORMATIONS-EXERCISE - 6(D)
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  2. Prove that (cos3A + sin3A)/(cosA - sin A) = 1+ 2sin 2A.

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  3. If theta lies in third Quardrant and Sintheta=(-4)/5. Find the values ...

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  5. (Cos^(3)theta-Cos3theta)/(Costheta)+(Sin^(3)theta+Sin3theta)/(Sintheta...

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  13. If cos theta =(5)/(13) and 270 ^(@) lt theta lt 360^(@), evaluate sin ...

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  14. If 180^(@) lt theta lt 270^(@) and sintheta=(-4)/5 calculate sin[theta...

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  16. Show that cos^4""pi/8+cos^4""(3pi)/8+cos^4""(5pi)/8+cos^4""(7pi)/8=3/2

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  19. cos^(2)(pi/10) + cos^(2) (2pi/5)+ cos^(2)(3pi/5) + cos^(2)(9pi/10) = 2...

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  20. Prove that (1+cos""pi/10)(1+cos""(3pi)/10)(1+cos""(7pi)/10)(1+cos""(9p...

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