Question

Solve this question and I will mark your answer as brainliest...​

Answer 1

Answer:

P∩Q = x ≥ 4

P∩Q' = 1 < x < 4

Step-by-step explanation:

in the first equation, 7x-4x > 2+1

or, 3x > 3

or, x > 1

in the second equation, 9x-45 ≥ 5(x-5)

or, 9x - 45 ≥ 5x-25

or, 9x-4x ≥ 45-25

or, 5x ≥ 20

or, x ≥ 4

Hence, P → x > 1 ; x∈R

Q → x ≥ 4 ; x∈R

∴P∩Q = x ≥ 4 ; x∈R

∴P∩Q' = 1 < x < 4 ; x∈R