diff --git a/c-.net/basic/essential/funksiyalarda-massivdan-foydalanish.md b/c-.net/basic/essential/funksiyalarda-massivdan-foydalanish.md
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--- a/c-.net/basic/essential/funksiyalarda-massivdan-foydalanish.md
+++ b/c-.net/basic/essential/funksiyalarda-massivdan-foydalanish.md
@@ -1,2 +1,121 @@
+---
+description: Yusupov Adhamjon
+---
+
 # Funksiyalarda massivdan foydalanish
 
+Massivlarni argument sifatida funksiya parametriga berish mumkin. Massivlar ma'lumotli(reference) tur bo'lgani uchun, funksiya unung qiymatlarini o'zgartira oladi.
+
+Butun sonlardan iborat massiv qimatlarini <i>n</i> marta ko'paytirish uchun quyidagicha ifodalash mumkin:
+```csharp
+static void Main()
+{
+  int[] numArr = { 3, 5, 8, 12, 21};
+  Multiply(numArr, 2);
+}
+
+static void Multiply(int[] numArr, int mul)
+{
+  for (int i = 0; i < numArr.Length; i++)
+  {
+    numArr[i] *= mul;
+  };
+}
+```
+
+Yangi massivni funksiya tanasining o'zada xosil qilib argument sifatida berish mumkin:
+```csharp
+Multiply(new int[] {3, 5, 8, 12, 21}, 2);
+```
+
+Massivni qaytaruvchi qiymat sifatida ifodalaymiz:
+```csharp
+static int[] GetRandomNums(int n)
+{
+  int[] arr = new int[n];
+  Random random = new Random();
+
+  for (int i = 0; i < n; i++)
+  {
+    int num;
+    do
+    {
+      num = random.Next(1, n + 1);
+    } while (Contains(arr, num));
+    arr[i] = num;
+  }
+  return arr;
+}
+
+// n soni arr massivda mavjudliligini tekshiramiz
+static bool Contains(int[] arr, int n)
+{
+  foreach (var item in arr)
+  {
+    if (item == n) return true;
+  }
+  return false;
+}
+```
+Ushbu funksiyadan foydalanamiz:
+```csharp
+int[] randomNumsArr = GetRandomNums(10);
+Console.WriteLine(string.Join(" ", randomNumsArr));
+```
+
+# Dastur matni
+
+```csharp
+using System;
+
+namespace ConsoleApp1
+{
+    class Program
+    {
+        static void Main()
+        {
+            int[] numArr = { 3, 5, 8, 12, 21};
+            Multiply(numArr, 2);
+
+            int[] randomNumsArr = GetRandomNums(10);
+            Console.WriteLine(string.Join(" ", randomNumsArr));
+        }
+
+        static void Multiply(int[] numArr, int mul)
+        {
+            for (int i = 0; i < numArr.Length; i++)
+            {
+                numArr[i] *= mul;
+            };
+        }
+
+
+        static int[] GetRandomNums(int n)
+        {
+            int[] arr = new int[n];
+            Random random = new Random();
+
+            for (int i = 0; i < n; i++)
+            {
+                int num;
+                do
+                {
+                    num = random.Next(1, n + 1);
+                } while (Contains(arr, num));
+                arr[i] = num;
+            }
+            return arr;
+        }
+
+        // n sonini arr massivda mavjudliligini tekshiramiz
+        static bool Contains(int[] arr, int n)
+        {
+            foreach (var item in arr)
+            {
+                if (item == n) return true;
+            }
+            return false;
+        }
+    }
+}
+```