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Find sin 5^(@) cos 85^(@) +cos 5^(@) si...

Find ` sin 5^(@) cos 85^(@) +cos 5^(@) sin 85^(@) `

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VGS PUBLICATION-BRILLIANT-TRIGONOMETRY-EXERCISE
  1. If cosec theta =(25)/( 7), then find cot theta

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  2. Evaluate the following and justify your answer. (i) (sin ^(2) 15^(...

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  3. Find sin 5^(@) cos 85^(@) +cos 5^(@) sin 85^(@)

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  4. Find sec 16^(@) cosec 74^(@) -cot 74^(@) tan 16^(@)

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  5. Show that cot theta +tan theta =sec theta cosec theta

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  6. Show that tan ^(2) theta +tan ^(4) theta =sec ^(4) theta -sec ^(2) th...

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  7. Prove that sqrt( (1+costheta)/(1-costheta) )= cosectheta+cottheta.(0^@...

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  8. Evaluate the following (1+tan theta +sec theta ) ( 1+cot theta -cos...

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  9. (sin theta + cos theta)^(2) + (sin theta - cos theta)^(2)=

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  10. (sec^(2) theta -1)(cosec^(2) theta-1)=

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  11. Show that (cosec theta -cot theta )^(2) =(1-cos theta )/( 1+cos theta ...

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  12. sqrt (( 1 + sin A ) /( 1 - sin A )) = sec A + tan A చూపండి.

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  13. Show that (1- tan ^(2) A ) /( cot ^(2) A-1) =tan ^(2) A

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  14. Show that 1/cos O/-cos O/ = tan O/ cdot sinO/(0^o < O/ <90^o)

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  15. Simplify sec A (1-sin A ) (secA+tan A)

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  16. Prove that ( sin A+ cosec A)^2+(cos A+sec A)^2=7+tan^2 A+ cot^2 A.

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  17. Simplify (1-cos theta ) (1+cos theta ) (1+ cot ^(2) theta) .

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  18. Simplify (1-cos theta ) (1+cos theta ) (1+ cot ^(2) theta) .

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  19. If sec theta +tan theta =p, then what is the value of sec theta -tan...

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  20. If cosec theta + cot theta =k , then prove that cos theta =(k^(2)-1)/(...

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