Question

JEE MAINS MATHS QUESTION SEPTEMBER 2020

Answer 1

Answer:

2) infinite solution

Step-by-step explanation:

We have,

[x]² + 2[x + 2] - 7 = 0

=>[x]² + 2[x] - 3 = 0

=>([x] + 3)([x] - 2) = p

Either, [x] = -3 or [x] = 2

=> x € ( -4, -3] or x € (1, 2]