Use Aggregate on an array with tenary operator in CSharp

using System;//from w w w .  j a  v a  2  s  .c om
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Linq;

public class MainClass{
   public static void Main(){
       int[] numbers = { 9, 3, 5, 4, 2, 6, 7, 1, 8 };
       var query = numbers.Aggregate(5, (a,b) => ( (a < b) ? (a * b) : a));
    }
}