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The value of (tan29^@ cot61^@ - cosec^2 ...

The value of `(tan29^@ cot61^@ - cosec^2 61^@) + cot^2 54^@ - sec^2 36^@ + (sin^2 1^@ + sin^2 3^@ + sin^2 5^@ + ... + sin^2 89^@)` is:

A

`22 1/2`

B

21

C

`20 1/2`

D

22

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PINNACLE-2018 Main Exam 2nd Shift-EXERCISE
  1. The graphs of the equations 2x + 3y = 11 and x -2y + 12 = 0 intersects...

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  2. Sujata marks an article 36% above the cost price and allows a 40% disc...

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  3. The value of (tan29^@ cot61^@ - cosec^2 61^@) + cot^2 54^@ - sec^2 36^...

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  4. In how many years were the imports more than 80% of the average export...

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  5. The value of (sec phi(1-sin phi)(sin phi+cos phi) (sec phi+tan phi))/(...

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  6. The value of 0.5 bar 6 -0.7 bar23+0.3 bar 9xx 0. bar 7 is : 0.5 ba...

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  7. The area of the base of a right circular cone is 400 pi and its height...

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  8. The given graph shows the marks obtained by students in an examination...

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  9. Renu was sitting inside train A, which was travelling at 50 km/h. Anot...

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  10. The given pie chart shows the quantity wise sales distribution of five...

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  11. The sides of a triangle are 56 cm, 90 cm and 106 cm. The circumference...

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  12. The average of 33 numbers is 74. The average of the first 17 numbers i...

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  13. Three fractions, x, y and z, are such that x > y > z. When the smalles...

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  14. In angle ABC, AB=AC and D is a point on BC. If BD = 5cm, AB =12 cm and...

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  15. An article is sold at a certain price. If it is sold at 80% of this pr...

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  16. To do a certain work, the ratio of the efficiencies of X and Y is 5:4....

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  17. A person sells an article at 16% below its cost price. Had he sold it ...

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  18. If x^4-83x^2+1=0, then a value of x^3-x^-3 can be :

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  19. The given pie chart shows the quantity wise sales distribution of five...

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  20. If 60% of a number is 120 more than 20% of the number, then 28% of the...

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