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Evaluate each of the following :- (cos...

Evaluate each of the following :-
`(cosec^(2)45^(@)sec^(2)30^(@))(sin^(2)30^(@)+4cot^(2)45^(@)-sec^(2)60^(@))`

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The correct Answer is:
`2/3`
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Evaluate each of the following : tan60^(@)cosec^(2)45^(@)+sec^(2)60^(@)tan45^(@)

Evaluate each of the following : 3cos^(2)30^(@)+sec^(2)30^(@)+2cos0^(@)+3sin90^(@)-tan^(2)60^(@)

Evaluate each of the following :- 4/(cot^(2)30^(@))+1/(sin^(2)60^(@))-cos^(2)45^(@)

Evaluate each of the following :- 2sin^(2)30^(@)-3cos^(2)45^(@)+tan^(2)60^(@)

Evaluate each of the following :- sin^(2)30^(@)+sin^(2)45^(@)+sin^(2)60^(@)+sin^(2)90^(@)

Evaluate each of the following : tan30^(@)sec45^(@)+tan60^(@)sec30^(@)

Evaluate each of the following : sin30^(@)cos45^(@)+cos30^(@)sin45^(@)

Evaluate the following : (5cos^(2)60^(@)+4sec^(2)30^(@)-tan^(2)45^(@))/(sin^(2)30^(@)+cos^(2)30^(@))

Evaluate each of the following :- (tan^(2)60^(@)+4cos^(2)45^(@)+3sec^(2)30^(@)+5cos^(2)90^(@))/(cosec30^(@)+sec60^(@)-cot^(2)30^(@))

Evaluate the following (sec^(2) 60^(@) -tan ^(2) 60^(@) )/( sin ^(2) 30^(@) +cos ^(2) 30^(@) )

KUMAR PRAKASHAN-INTRODUCTION TO TRIGONOMETRY-Test Your Skills
  1. Evaluate each of the following :- sin^(2)30^(@)+sin^(2)45^(@)+sin^(2...

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  2. Evaluate each of the following :- 2sin^(2)30^(@)-3cos^(2)45^(@)+tan^...

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  3. Evaluate each of the following :- (cosec^(2)45^(@)sec^(2)30^(@))(sin...

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  4. Evaluate each of the following :- 4/(cot^(2)30^(@))+1/(sin^(2)60^(@)...

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  5. Evaluate each of the following :- (tan^(2)60^(@)+4cos^(2)45^(@)+3sec...

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  6. Find x if 2 sin 3x =sqrt3

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  7. Find x if sqrt3 tan 2x = cos 60° + sin 45° cos 45°

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  8. If A= 30° and B = 60°, verify that cos (A+ B) = cos A cos B - sin A si...

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  9. Find acute angles A and B if sin (A+ 2B) =(sqrt3)/2 and cos (A+ 4B) = ...

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  10. If A and B are acute angles such that tanA=1/2,tanB=1/3 and tan(A+B)=(...

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  11. Evaluate the following : (tan35^(@))/(cot55^(@))+(cot78^(@))/(tan12^...

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  12. Evaluate the following : (sin72^(@)+cos18^(@))(sin72^(@)-cos18^(@))

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  13. Evaluate the following : sec50^(@)sin40^(@)+cos40^(@)cosec50^(@)

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  14. Express each of the following in terms of trigonometric ratios of ang...

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  15. Express each of the following in terms of trigonometric ratios of ang...

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  16. Express each of the following in terms of trigonometric ratios of ang...

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  17. Prove that : tan 20° tan 35° tan 45° tan 55° tan 70° = 1

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  18. Prove that : (cos80^(@))/(sin10^(@))+cos59^(@)cosec31^(@)=2

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  19. If sin theta = cos (theta-45°), where theta and theta- 45° are acute a...

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  20. Evaluate : ( 1 ) cosec (65° +theta) -sec (25° - theta) - tan (55° + ...

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