JEE AdvancedMathematicsApplication of DerivativesMCQ+3 / −1
By approximately matching the information given in the three columns of the following table.
Let f(x) = x + loge x x loge x, x (0, )
Column 1 contains information about zeroes of f(x), f'(x) and f"(x).
Column 2 contains information about the limiting behaviour of f(x), f'(x) and f"(x) at infinity.
Column 3 contains information about increasing/decreasing nature of f(x) and f'(x).
Which of the following options is the only INCORRECT combination?
Let f(x) = x + loge x x loge x, x (0, )
Column 1 contains information about zeroes of f(x), f'(x) and f"(x).
Column 2 contains information about the limiting behaviour of f(x), f'(x) and f"(x) at infinity.
Column 3 contains information about increasing/decreasing nature of f(x) and f'(x).
| Column - 1 | Column - 2 | Column - 3 | |
|---|---|---|---|
| (i) | f(x) = 0 for some | (i) | f is increasing in (0, 1) |
| (ii) | f'(x) = 0 for some | f is decreasing in (e, ) | |
| (iii) | f'(x) = 0 for some | f' is increasing in (0, 1) | |
| (iv) | f'(x) = 0 for some | f' is decreasing in (e, ) |
- A(I) (iii) (P)
- B(II) (iv) (Q)
- C(II) (ii) (P)
- D(III) (i) (R)
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