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The value of cos( 1/2 cos^(-1)"" 1/8) i...

The value of `cos( 1/2 cos^(-1)"" 1/8) ` is equal to

A

`-3//4`

B

`3//4`

C

`1//16`

D

`1//4`

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The correct Answer is:
B
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 5-Mathematics
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  2. The expression ((a+b+c)(b+c-a)(c+a-b)(a+b-c))/(4b^2 c^2) for a triang...

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  3. The value of cos( 1/2 cos^(-1)"" 1/8) is equal to

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  4. If the base of an isosceles triangle is of length '2a' and the length ...

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  5. PQ is double ordinate of the hyperbola x^2//a^2 - y^2//b^2 =1 such tha...

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  6. If phi(x) = int(1//x)^(sqrtx) sin(t^2) dt, then phi'(1) is equal to

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  7. If int cosex 2x dx = f(g(x)) + c , then

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  8. If y=e^(4x) + 2e^(-x) satisfies the relation y3 + Ay1 + By = 0 then

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  9. Let veca = 2hati + hatj -hatk , vecb = hati + 2hatj - hatk , and vecc...

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  10. One diameter of the circle circumscribing the rectangle ABCD is 4y= x+...

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  11. P is a point on the given curve such that the normal at P to the curve...

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  12. If 4a^2 + 9b^2 - c^2 + 12ab=0 , then the family of straight lines ax +...

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  13. If the circle x^(2)+y^(2)=a^(2) intersects the hyperbola xy=c^(2) in f...

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  14. Let a=(1//3) (-hati + 2hatj + 2hatk), then

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  15. F(X)= {{:(|x-2|+a ,"for "x lt 2),(b-|x-2|, "for "x ge 2):}} then

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  16. The conic given by y^2 + 8x - 12y + 20 =0

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  17. The number of solutions of 1+ sin^6 x = cosx , in the interval 0 le x ...

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  18. a,b,c are the lengths of the sides of a non-degenerate triangle , If k...

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  19. k ne -1 is a constant. The value of lim(n to oo)(1^k + 2^k + …. + n^...

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  20. P(x) is a polynomial satisfying P(x+3//20) = P(x), for all x. If P(5) ...

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