Grade 12Algebra
Please tell me what will be the domain for the function: f(x)=cos^-1 [2x^2 – 3] The answer given is: (- root(5/2) , -1] ∪ [1, root(5/2) But i am getting answer as [−√2, −1]∪ [1, √2]
Please tell me what will be the domain for the function:
f(x)=cos^-1 [2x^2 – 3]
The answer given is: (- root(5/2) , -1] ∪ [1, root(5/2)
But i am getting answer as
[−√2, −1]∪ [1, √2]
