हिंदी
तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान कक्षा ११

Find the largest possible domain of the real valued function f(x) = 4-x2x2-9 - Mathematics

Advertisements
Advertisements

प्रश्न

Find the largest possible domain of the real valued function f(x) = `sqrt(4 - x^2)/sqrt(x^2 - 9)`

योग

उत्तर

f(x) = `sqrt(4 - x^2)/sqrt(x^2 - 9)`

Here `sqrt(4 - x^2) > 0`

4 – x2 > 0

∴ x2 > 4

x < 2 and x > – 2

Here `sqrt(x^2 - 9) > 0`

x2 – 9 > 0

∴ x2 > 9

x > 3 and x < – 3

∴ No largest possible domain

The domain is null set

shaalaa.com
Functions
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Sets, Relations and Functions - Exercise 1.3 [पृष्ठ ३७]

APPEARS IN

सामाचीर कलवी Mathematics - Volume 1 and 2 [English] Class 11 TN Board
अध्याय 1 Sets, Relations and Functions
Exercise 1.3 | Q 7 | पृष्ठ ३७

संबंधित प्रश्न

Write the values of f at −3, 5, 2, −1, 0 if

f(x) = `{{:(x^2 + x - 5,  "if"  x ∈ (−∞, 0)),(x^2 + 3x - 2,  "if"  x ∈ (3, ∞)),(x^2,  "if"  x ∈ (0",", 2)),(x^2 - 3,  "otherwise"):}`


State whether the following relations are functions or not. If it is a function check for one-to-oneness and ontoness. If it is not a function, state why?

If A = {a, b, c} and f = {(a, c), (b, c), (c, b)}; (f : A → A)


State whether the following relations are functions or not. If it is a function check for one-to-oneness and ontoness. If it is not a function, state why?

If X = {x, y, z} and f = {(x, y), (x, z), (z, x)}; (f : X → X)


Let A = {1, 2, 3, 4} and B = {a, b, c, d}. Give a function from A → B of the following:

neither one-to-one nor onto


Let A = {1, 2, 3, 4} and B = {a, b, c, d}. Give a function from A → B of the following:

not one-to-one but onto


Let A = {1, 2, 3, 4} and B = {a, b, c, d}. Give a function from A → B of the following:

one-to-one but not onto


Let A = {1, 2, 3, 4} and B = {a, b, c, d}. Give a function from A → B of the following:

one-to-one and onto


Show that the relation xy = −2 is a function for a suitable domain. Find the domain and the range of the function


If f, g, h are real valued functions defined on R, then prove that (f + g) o h = f o h + g o h. What can you say about f o (g + h)? Justify your answer


If f : R → R is defined by f(x) = 3x − 5, prove that f is a bijection and find its inverse


A salesperson whose annual earnings can be represented by the function A(x) = 30,000 + 0.04x, where x is the rupee value of the merchandise he sells. His son is also in sales and his earnings are represented by the function S(x) = 25,000 + 0.05x. Find (A + S)(x) and determine the total family income if they each sell Rupees 1,50,00,000 worth of merchandise


The function for exchanging American dollars for Singapore Dollar on a given day is f(x) = 1.23x, where x represents the number of American dollars. On the same day the function for exchanging Singapore Dollar to Indian Rupee is g(y) = 50.50y, where y represents the number of Singapore dollars. Write a function which will give the exchange rate of American dollars in terms of Indian rupee


The formula for converting from Fahrenheit to Celsius temperatures is y = `(5x)/9 - 160/9`. Find the inverse of this function and determine whether the inverse is also a function


Choose the correct alternative:

If f(x) = |x − 2| + |x + 2|, x ∈ R, then


Choose the correct alternative:

The range of the function  `1/(1 - 2 sin x)` is


Choose the correct alternative:

The function f : [0, 2π] → [−1, 1] defined by f(x) = sin x is


Choose the correct alternative:

If the function f : [−3, 3] → S defined by f(x) = x2 is onto, then S is


Choose the correct alternative:

Let X = {1, 2, 3, 4}, Y = {a, b, c, d} and f = {(1, a), (4, b), (2, c), (3, d), (2, d)}. Then f is


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×