Home
Class 12
MATHS
Number of integers in domain of function...

Number of integers in domain of function `f(x) =log_(|x^2|)(4-|x|)+log_2{sqrt(x)}` is
a) 0
b) 1
c) 2
d) 3

A

0

B

1

C

2

D

3

Text Solution

AI Generated Solution

The correct Answer is:
To find the number of integers in the domain of the function \( f(x) = \log_{|x^2|}(4 - |x|) + \log_2(\sqrt{x}) \), we need to determine the conditions under which this function is defined. ### Step 1: Analyze the first logarithm The first term is \( \log_{|x^2|}(4 - |x|) \). For this logarithm to be defined, we need two conditions to be satisfied: 1. The base \( |x^2| \) must be greater than 1. 2. The argument \( 4 - |x| \) must be greater than 0. **Condition 1**: \( |x^2| > 1 \) - Since \( |x^2| = x^2 \) (as \( x^2 \) is always non-negative), we need \( x^2 > 1 \). - This implies \( x > 1 \) or \( x < -1 \). **Condition 2**: \( 4 - |x| > 0 \) - This simplifies to \( |x| < 4 \). - Therefore, \( -4 < x < 4 \). ### Step 2: Combine the conditions Now we combine the two conditions: 1. From \( |x^2| > 1 \), we have \( x > 1 \) or \( x < -1 \). 2. From \( 4 - |x| > 0 \), we have \( -4 < x < 4 \). Now, we will analyze these intervals: - For \( x > 1 \): The intersection with \( -4 < x < 4 \) gives us \( 1 < x < 4 \). - For \( x < -1 \): The intersection with \( -4 < x < 4 \) gives us \( -4 < x < -1 \). ### Step 3: Determine the integer values in the intervals Now we need to find the integers in the intervals \( (1, 4) \) and \( (-4, -1) \). 1. In the interval \( (1, 4) \), the integers are \( 2, 3 \). 2. In the interval \( (-4, -1) \), the only integer is \( -2, -3 \). ### Step 4: Count the integers Now we count the integers: - From \( (1, 4) \): \( 2, 3 \) (2 integers) - From \( (-4, -1) \): \( -2, -3 \) (2 integers) Thus, the total number of integers in the domain of the function is \( 2 + 2 = 4 \). ### Final Answer The number of integers in the domain of the function \( f(x) \) is **4**.

To find the number of integers in the domain of the function \( f(x) = \log_{|x^2|}(4 - |x|) + \log_2(\sqrt{x}) \), we need to determine the conditions under which this function is defined. ### Step 1: Analyze the first logarithm The first term is \( \log_{|x^2|}(4 - |x|) \). For this logarithm to be defined, we need two conditions to be satisfied: 1. The base \( |x^2| \) must be greater than 1. 2. The argument \( 4 - |x| \) must be greater than 0. **Condition 1**: \( |x^2| > 1 \) ...
Promotional Banner

Topper's Solved these Questions

  • FUNCTIONS

    CENGAGE ENGLISH|Exercise Multiple Correct Answers Type|9 Videos
  • FUNCTIONS

    CENGAGE ENGLISH|Exercise Comprehension Type|7 Videos
  • EQUATION OF PLANE AND ITS APPLICATIONS -II

    CENGAGE ENGLISH|Exercise DPP 3.4|14 Videos
  • GETTING STARTED WITH GRAPHS

    CENGAGE ENGLISH|Exercise Exercises 1.18|1 Videos

Similar Questions

Explore conceptually related problems

The domain of the function f(x)=(log)_(3+x)(x^2-1) is

Domain of the function f(x) =log_(0.5) (3x-x^(2)-2)

Find domain of the function f(x)=1/(log_10 (1-x)) +sqrt(x+2)

Find domain of the function f(x)=1/(log_10 (1-x)) +sqrt(x+2)

Domain of the function f(x)=(1)/(log(2-x)) is

Domain of the function f(x)=log(sin^(-1)sqrt(x^(2)+3x+2)) is :

Find the domain of the function : f(x)=sin^(-1)((log)_2x)

Find the domain of the function : f(x)=sin^(-1)((log)_2x)

The domain of the function f(x)=log_(3)[1-log_(6)(x^(2)-7x+16)] is

Find the domain of the function : f(x)=sqrt(((log)_(0. 3)|x-2|)/(|x|))