Se considera multimile: A={x∈R|-√3∠x≤2} si B={x∈R|-√5≤x∠4}

a)Scrieti multimile A si B sub forma de interval.
b)Determinati multimile:C={x∈R|x∈ A si x∈B} ; D={x∈R| x∈A sau x∈B

Am nevoie urgent!!!!! pls dau coroana