Atomos Test Generator Free PYQs ExamsMy practice Log in / Sign up free

Relations and Functions

JEE Main 2025 (Online) 22nd January Morning ShiftMCQEasy📈 Topic in 5% papers+4−1
Ques. 1JEE Main 2025, 22 January (Morning Shift)

The product of all solutions of the equation e5( ex)2+3=x8, x>0, is :

  1. e2
  2. e
  3. e6/5
  4. e8/5

Answer

(4) e8/5

Solution

Take e and put t= ex:

5t2+3=8t 5t2-8t+3=0 t1+t2= 85

x1x2=et1et2=et1+t2=e8/5

Answer: (4)

Keep practising — Relations and Functions

Ques. 2JEE Main 2024, 6 April (Evening Shift)

Let f(x) = 17 - 5x be a function defined on R. Then the range of the function f(x) is equal to :

  1. [ 18, 15 ]
  2. [ 17, 16 ]
  3. [ 17, 15 ]
  4. [ 18, 16 ]
Ques. 3JEE Main 2024, 5 April (Morning Shift)

If S = \a R : |2a - 1| = 3[a] + 2\a\\, where [t] denotes the greatest integer less than or equal to t and \t\ represents the fractional part of t, then 72 a S a is equal to .

Ques. 4JEE Main 2024, 4 April (Morning Shift)

If the domain of the function -1 ( 3x-222x-19 )+ e ( 3x2-8x+5x2-3x-10 ) is ( , ], then 3 +10 is equal to:

  1. 95
  2. 100
  3. 97
  4. 98
Ques. 5JEE Main 2024, 4 April (Morning Shift)

Let the sum of the maximum and the minimum values of the function f(x)= 2x2-3x+82x2+3x+8 be mn, where (m, n)=1. Then m+n is equal to :

  1. 217
  2. 182
  3. 201
  4. 195
Ques. 6JEE Main 2024, 1 February (Evening Shift)

If the domain of the function f(x)= x2-25 (4-x2 )+ 10 (x2+2x-15 ) is (- , ) [ , ), then 2+ 3 is equal to :

  1. 140
  2. 175
  3. 125
  4. 150
Ques. 7JEE Main 2024, 30 January (Morning Shift)

If the domain of the function f(x)= -1 ( 2-|x|4 )+ \ e(3-x) \-1 is [- , )-\ \, then + + is equal to :

  1. 11
  2. 12
  3. 9
  4. 8
Ques. 8JEE Main 2024, 30 January (Evening Shift)

If the domain of the function f(x)= e ( 2 x+34 x2+x-3 )+ -1 ( 2 x-1x+2 ) is ( , ], then the value of 5 -4 is equal to

  1. 9
  2. 12
  3. 11
  4. 10

All Relations and Functions PYQs →

PDFDownload Relations and Functions PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All JEE Main Mathematics chapters