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The domain of sec 5x is:...

The domain of sec 5x is:

A

`R-[npi, n in N]`

B

`R-{(2n+1)pi/2, n in Z]`

C

`R-{(npi)/5, n in Z}`

D

`R-{(2n+1)pi/10, n in Z}`

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The correct Answer is:
D
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AAKASH SERIES-FUNCTIONS -EXERCISE -I
  1. If f(x) = (3x+2)/(5x-3), then

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  2. The domain of (10^(x) +10^(-x))/(10^(x)-10^(-x)) is:

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  3. The domain of sec 5x is:

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  4. Domain of root(3)(x). cot x is

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  5. The domain of (x+1)/sqrt(x^(2)-5x+6) is:

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  6. The domain of the function: f(x) = log(3)(18x-x^(2)-77) is:

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  7. The domain of log(x)5 is:

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  8. If f(x) =|x/2| is a real function, then f: R to B is a surjection then...

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  9. Let A={x in R : x ne 0, -4le xle4} and f:A rarrR is defined by f(x)=(|...

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  10. Domain , Range of f(x) =|x| + |x+1| are respectively:

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  11. f and h are form A into B where A={a,b,c,d}, B={s,t,u} defined as f(a)...

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  12. A = {1, 2, 5, 6, 11}, B = {2, -1, 1, 0, 11, 108} and f(x) x^(2)-x-2, t...

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  13. The function f: N to N defined by f(n) =2n+3 is

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  14. f: N to A where N is the set of natural numbers and A is the set of e...

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  15. Define f:Z rarrZ by f(x)={{:(x//2,"(x is even)"),(0,"(x is odd)"):} th...

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  16. If f:[0,infty) to R defined by f(x) = x^(2), then f is

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  17. Let X and Y be subsets of R, the set of all real numbers. The function...

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  18. If f: A to A is defined by f(x) =x^(3), where A ={x//-1 le x le 1}, th...

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  19. The function cos(3x-4) defined from R to R is:

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