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The interval in which the function f(x)=...

The interval in which the function f(x)=sin x-cos x -ax +b decreases for all real values of x is given by

A

`a ge sqrt(2)`

B

`a le 1`

C

`a lt sqrt(2)`

D

`a lt 1 `

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A
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OBJECTIVE RD SHARMA ENGLISH-INCREASING AND DECREASING FUNCTIONS-Exercise
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  8. the function(|x-1|)/(x^(2)) is monotonically decreasing at the point

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  11. A condition for a function y=f(x) to have an inverse is that it should...

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  13. The function f(x)=(ln(pi+x))/(ln(e+x)) is

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  14. Column I, Column II int(e^(2x)-1)/(e^(2x)+1)dxi se q u a lto , p. x...

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  15. y={x(x-3)^2 increases for all values of x lying in the interval

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  16. If a lt 0 and f(x)=e^(ax )+ e^(-ax) is monotonically decreasing . F...

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  17. The function f(x) = tanx - x

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  18. The function f(x)=cot^(-1)x+x increases in the interval (a) (1,\ oo) ...

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