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Smallest form of 2/(sqrt(2+sqrt(2+sqrt(2...

Smallest form of `2/(sqrt(2+sqrt(2+sqrt(2+2 cos4x))))` is :

A

`sec frac (x)(2)`

B

sec x

C

cosec x

D

1

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
  1. P=1/2 sin^2 theta+1/3 cos^2 theta, then :

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  2. The smallest value of 5 cos theta+ 12 is :

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  3. Smallest form of 2/(sqrt(2+sqrt(2+sqrt(2+2 cos4x)))) is :

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  4. If 5 cos 2 theta +2 cos^2 (theta/2)+1=0, when (0 ltthetalt pi), then t...

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  6. If A+B=45^@ then then (cot A- 1) (cot B- 1) is equal to :

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  9. If tan A and tan B are the roots of abx^2- c^2x + ab= 0, where a, b, c...

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  10. In a Delta ABC, if a =3, b=4, c=5, then find the distance between its ...

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  11. In triangle ABC the value of (cot frac (A)(2) cot frac (B)(2)-1) /(cot...

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  12. In a triangle ABC if angle A= 60^@,a=5,b= 4, then c is a root of the e...

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  13. From the top of a tower, the angle of depression of a point on the gro...

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  14. If alpha and beta satisfying 2 sec2 alpha = tan beta + cot beta, then ...

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  16. Value of cos^2(A - B) + cos^2 B - 2 cos (A-B) cos Acos B is:

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  17. The co-ordinates of the incentre of the triangle having sides 3x - 4y ...

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  18. If 1 + sin x+ sin^2 x+.... up to oo=4+2 sqrt3, 0ltxlt pi and x ne pi/2...

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  19. Which one of the following is possible ?

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