Home Maths JEE - Advanced Previous Year Paper JEE-Advanced-2023-Paper-1 MATHEMATICS SECTION-3 : (Maximum Marks : 12)…
Maths JEE - Advanced Previous Year Paper JEE-Advanced-2023-Paper-1 Single Correct MCQ
Published on: August 13, 2026

MATHEMATICS

SECTION-3 : (Maximum Marks : 12)

• This section contains THREE (03) questions.

• Each question has FOUR options

A
, , , and and will get +1 marks; choosing ONLY There are infinitely many functions from S to T
B
, and and will get +2 marks; choosing ONLY and will get +1 marks; choosing ONLY There are infinitely many strictly increasing functions from S to T
C
and The number of continuous functions from S to T is at most 120
D
. ONE OR MORE THAN ONE of these four option(s) is(are) correct answer(s). • For each question, choose the option(s) corresponding to (all) the correct answer(s). • Answer to each question will be evaluated according to the following marking scheme: Full Marks : +4 ONLY if (all) the correct option(s) is(are) chosen; Partial Marks : +3 If all the four options are correct but ONLY three options are chosen; Partial Marks : +2 If three or more options are correct but ONLY two options are chosen, both of which are correct; Partial Marks : +1 If two or more options are correct but ONLY one option is chosen and it is a correct option; Zero Marks : 0 If none of the options is chosen (i.e. the question is unanswered); Negative Marks : -2 In all other cases. • For example, in a question, if are the ONLY three options corresponding to correct answers, then choosing ONLY will get +4 marks; choosing ONLY will get +2 marks; choosing ONLY will get +2 marks; choosing ONLY will get +1 marks; choosing no option (i.e. the question is unanswered) will get 0 marks; and choosing any other combination of options will get -2 marks. Let S = (0,1) (1,2) (3,4) and T = {0,1,2,3}. Then which of the following statements is(are) true ? Every continuous function from S to T is differentiable

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Text Solution

Verified by Experts
The correct answer is:
CHECK THE SOLUTION.

(a,c,d)

Sol. S = (0, l)u(l,2)u(3,4)

T= {0,1,2,3}

Number of functions :

Each element of S have 4 choice

Let n be the number of element in set S.

Number of function = 4 n

Here

Option is correct.

Option is incorrect (obvious)

For continuous function

Each interval will have 4 choices.

Number of continuous functions

= 4x4x4 = 64

Option is correct.

Every continuous function is piecewise constant functions

Differentiable.

Option is correct.

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