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Least value of the function , f(x)=2^(x...

Least value of the function , `f(x)=2^(x^2)-1+2/(2^(x^2)+1)` is :

A

0

B

`3//2`

C

`2//3`

D

`1`

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The correct Answer is:
D
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MOTION-MAXIMA AND MINIMA -EXERCISE -2 (LEVEL- I)
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  2. If f(x)=(x^2-1)/(x^2+1) . For every real number x , then the minimum v...

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  3. If f(x)=alog|x|+b x^2+x has its extremum values at x=-1a n dx=2, then ...

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  4. Which of the following point lying on the line x + 2y = 5 is at minimu...

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  5. The maximum distance of the point (a, 0) from the curve 2x^(2) + y^(2)...

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  6. The point on the line y = x such that the sum of the squares of its di...

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  7. if the complete set of values (s) of 'a' for which the function f (x)...

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  8. If the point (1,3) serves as the point of inflection of the curve y =...

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  9. The equation x^(3) - 3x + [a] = 0 , will have three real and distinct ...

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  10. Solution(s) of the equation. 3x^2-2x^3 = log2 (x^2 + 1) - log2 x is/ar...

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  11. Let f(x)=x^(3) +3(a-7)x^(2)+3(a^(2) -9) x-1. If f(x) has positive po...

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  12. If the function f(x) = x^3-9x^2 +24x + c has three real and distinct r...

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  13. A and B are the points (2, 0) and (0, 2) respectively. The coordinates...

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  14. Two points A(1, 4) & B(3, 0) are given on the ellipse 2x^(2) + y^(2) =...

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  15. Least value of the function , f(x)=2^(x^2)-1+2/(2^(x^2)+1) is :

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  16. The coordinate of the point at which minimum value of Z = 7x - 8y, sub...

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  17. Maximum and minimum value of f(x) = max (sin t), 0 lt t lt x le 0 x l...

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  18. If a^2x^4+b^2y^4=c^6, then the maximum value of x y is (c^2)/(sqrt(a b...

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  19. Let f(x) =sin ({x})/(a) + cos ({x})/(a) where a gt 0 and {.} denotes t...

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  20. The maximum value of f(x) , if f(x) + f ((1)/(x)) = (1)/(x) , x in ...

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