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The interval of increase of the function...

The interval of increase of the function `f(x)=x-e^x +tan ((2 pi)/7)` is equal to

A

`(0,oo)`

B

`(-oo ,0)`

C

`(1,oo)`

D

`(-oo,-1)`

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The correct Answer is:
B, D
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ML KHANNA-FUNCTIONS-PROBLEM SET (4)
  1. If f(x) = int(x^2)^(x^2 +1) e^(-t^2), the interval in which f (x) is i...

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  2. If the function f(x) = ( a sin x + 2 cos x)/( sin x + cos x ) is inc...

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  3. The interval of increase of the function f(x)=x-e^x +tan ((2 pi)/7) is...

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  4. The function f (x)=cot^(-1) x +x increases in the interval

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  5. The function f (x)= x^x decreases on the interval

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  6. The function f(x) = (x)/(log x) increases on the interval

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  7. The function f (x) = ( log x)/( x ) is increasing in the interval

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  8. The function f (x)= ( x)/( 4 +x^2) decreases in the interval

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  9. The function f (x) =tan x-x

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  10. If alpha lt 0, the function (e^( alpha x) +e^(- alpha x )) is a monoto...

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  11. The value of b for which the function f (x)=sin x-bx+c is decreasing i...

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  12. The value of a for which the function f (x) = sin x-Cos x-ax+b decreas...

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  13. y=sin x-a sin2x-1/3 sin 3x + 2ax, then y increases for all values of x...

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  14. The set of values of a 'for which the function f (x) = x^2 + ax +1 is ...

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  15. The length of a longest interval in which the function 3 sin x - 4 sin...

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  16. If f(x) = 2x + cot^(-1) x + log ( sqrt(1+x^2 )-x) then f(x)

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  17. Let h(x) = f (x) -(f (x))^2+ (f (x))^3 for every real number x: Then

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  18. If f(x) = x^(3) + bx^(2) + cx+d and 0 lt b^2 lt c, then in (-oo,...

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  19. The function f (x)=2 log (x - 2) - x^2 + 4x +1 increases on the interv...

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  20. On which of the following intervals is the function f(x)=2x^2 - log |...

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