Question

the solution set of x^2≤4 is

class 11 maths​

Answer 1

Answer:

x = [-2,2]

Step-by-step explanation:

x^2 ≤ 4

x^2 - 4 ≤ 0

(x+2)(x-2) ≤ 0

Since , a^2 - b^2 = (a+b)(a-b)

By wavy curve method,

x= [-2,2]