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The gratest value of the function f(x)=(...

The gratest value of the function `f(x)=(sinx)/(sin(x+pi/4))` on thhe interval `[0,pi//2]` is

A

`1//sqrt2`

B

`sqrt2`

C

1

D

`-sqrt2`

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The correct Answer is:
B
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OBJECTIVE RD SHARMA-MAXIMA AND MINIMA -Exercise
  1. For the curve y=x e^x , the point

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  2. The gratest value of the function f(x)=(sinx)/(sin(x+pi/4)) on thhe in...

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  3. If P(x) = a 0 + a 1 x ^(2) + a 2 x^(4) + … + a n x ^(2n) is a polyn...

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  4. A differentiable function f(x) has a relative minimum at x=0. Then the...

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  5. The function int(1)^(x){2(t-1)(t-2)^3+3(t-1)^2(t-2)^2} attains its max...

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  6. If the function f(x) = x^3 + 3(1-7)x^2 +3(a^2-9)x-1 has a positive ...

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  7. Show that the maximum value of (1/x)^x is e^(1/e)dot

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  8. If the function f(x)=2x^3-9ax^2+12a^2x+1 attains its maximum and minim...

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  9. The maximum distance of the point (k, 0) from the curve 2x^2+y^2-2x=0 ...

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  10. A cubic f(x) vanishes at x=-2 and has relative minimum "/" maximum at ...

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  11. An isosceles triangle of vertical angle 2theta is inscribed in a ...

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  12. Find minimum value of px+qy where p>0, q>0, x>0, y>0 when xy=r,^2 with...

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  13. The maximum slope of the curve y=-x^3+3x^2+9x-27 is

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  14. If (x+c)/(1+x^2) where c is a constant , then when y is stationary , x...

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  15. N Characters of information are held on magnetic tape, in batches of x...

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  16. if Agt0,Bgt0 and A+B=pi/3 then the maximum value of tanA.tanB is (A) 1...

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  17. The largest value of 2x^(3)-3x^(2)-12x+5 for -2 le x le x2 occurs when

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  18. The first and second order derivatives of a function f(x) exit at all ...

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  19. The minimum value of 2^(x^2-3)^(3+27) is 2^(27) (b) 2 (c) 1 (d) ...

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  20. Let f(x) =cosx sin2x. Then , min (f(x):-pilexlepi) is

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