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JEE Main Mathematics question

MathematicsApplication of DerivativesJEE Main

The function is defined by . Observe the following statements: I. is one-one; II. is onto; III. is a decreasing function. Out of these, true statements are

Answer: (C)

Solution

with base , so it is strictly DECREASING. A strictly decreasing function is one-one, so statement I is

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Question ID VK-007500