diff --git "a/Lab2/White 2 \320\232\320\276\320\275\321\214\321\210\320\270\320\275\320\260.cs" "b/Lab2/White 2 \320\232\320\276\320\275\321\214\321\210\320\270\320\275\320\260.cs"
new file mode 100644
index 0000000..d4243d0
--- /dev/null
+++ "b/Lab2/White 2 \320\232\320\276\320\275\321\214\321\210\320\270\320\275\320\260.cs"	
@@ -0,0 +1,132 @@
+using System.Runtime.Intrinsics.X86;
+
+namespace Lab2
+{
+    public class White
+    {
+        const double E = 0.0001;
+        public int Task1(int n)
+        {
+            int answer = 0;
+
+            // code here
+            int a1 = 2;
+            int a2 = 3*n-1;
+            int d = 3;
+            answer = (((2*a1+(n-1)*d))*n)/2;
+            // end
+
+            return answer;
+        }
+        public double Task2(int n)
+        {
+            double answer = 0;
+
+			// code here
+			double s = 0;
+
+			for (int i = 1; i <= n; i++)
+			{
+				s = s + 1.0 / i;
+			}
+
+            // end
+            answer = s;
+
+			return answer;
+        }
+        public long Task3(int n)
+        {
+            long answer = 0;
+
+            // code here
+			long s = 1;
+            for (int i = 1; i <= n; i++)
+                s = s * i;
+			// end
+			answer = s;
+			return answer;
+        }
+        public long Task4(int a, int b)
+        {
+            long answer = 0;
+
+            // code here
+            long s =1;
+            for (int i = 1; i <= b; i++)
+                s *= a;
+            // end
+            answer = s;
+            return answer;
+        }
+        public int Task5(int L)
+        {
+            int answer = 0;
+
+            // code here
+            int s = 1;
+            int n = 1;
+            while (s <= L)
+            {
+                s *= n;
+                n += 3;
+            
+            }
+            // end
+            answer = n-3;
+            return answer;
+        }
+        public double Task6(double x)
+        {
+            double answer = 0;
+            double miniC = 0.0001;
+            double s = 1.0;
+            double tek = 1.0;
+            // code here
+            while (tek >= miniC) 
+            {
+                tek = tek * x * x;
+                s = s + tek;
+            }
+            // end
+            answer = s;
+            return answer;
+        }
+
+        public int Task7(int n)
+        {
+            int answer = 0;
+            int sum = 0;
+
+            // code here
+            while (sum < n)
+            {
+                answer++;
+                sum += answer;
+            }
+            return answer;
+
+            // end
+
+
+        }
+        public int Task8(double L, double v)
+        {
+            int answer = 0;
+            const double R = 6371.0; // радиус Земли, км
+            double Height = 0;
+            double Horizon = 0;
+            // code here
+            while (Horizon <= L) 
+            {
+                answer++;
+                Height += v;
+                Horizon = Math.Sqrt((2 * R * Height) + (Height * Height));
+            }
+            // end
+
+            return answer;
+        }
+    }
+
+}
diff --git a/Lab2/White.cs b/Lab2/White.cs
index 6ae54c2..d4243d0 100644
--- a/Lab2/White.cs
+++ b/Lab2/White.cs
@@ -1,4 +1,6 @@
-namespace Lab2
+using System.Runtime.Intrinsics.X86;
+
+namespace Lab2
 {
     public class White
     {
@@ -8,7 +10,10 @@ public int Task1(int n)
             int answer = 0;
 
             // code here
-
+            int a1 = 2;
+            int a2 = 3*n-1;
+            int d = 3;
+            answer = (((2*a1+(n-1)*d))*n)/2;
             // end
 
             return answer;
@@ -17,30 +22,41 @@ public double Task2(int n)
         {
             double answer = 0;
 
-            // code here
+			// code here
+			double s = 0;
+
+			for (int i = 1; i <= n; i++)
+			{
+				s = s + 1.0 / i;
+			}
 
             // end
+            answer = s;
 
-            return answer;
+			return answer;
         }
         public long Task3(int n)
         {
             long answer = 0;
 
             // code here
-
-            // end
-
-            return answer;
+			long s = 1;
+            for (int i = 1; i <= n; i++)
+                s = s * i;
+			// end
+			answer = s;
+			return answer;
         }
         public long Task4(int a, int b)
         {
             long answer = 0;
 
             // code here
-
+            long s =1;
+            for (int i = 1; i <= b; i++)
+                s *= a;
             // end
-
+            answer = s;
             return answer;
         }
         public int Task5(int L)
@@ -48,42 +64,69 @@ public int Task5(int L)
             int answer = 0;
 
             // code here
-
+            int s = 1;
+            int n = 1;
+            while (s <= L)
+            {
+                s *= n;
+                n += 3;
+            
+            }
             // end
-
+            answer = n-3;
             return answer;
         }
         public double Task6(double x)
         {
             double answer = 0;
-            const double R = 6371.0; // радиус Земли, км
-
+            double miniC = 0.0001;
+            double s = 1.0;
+            double tek = 1.0;
             // code here
-
+            while (tek >= miniC) 
+            {
+                tek = tek * x * x;
+                s = s + tek;
+            }
             // end
-
+            answer = s;
             return answer;
         }
 
         public int Task7(int n)
         {
             int answer = 0;
+            int sum = 0;
 
             // code here
+            while (sum < n)
+            {
+                answer++;
+                sum += answer;
+            }
+            return answer;
 
             // end
 
-            return answer;
+
         }
         public int Task8(double L, double v)
         {
             int answer = 0;
-
+            const double R = 6371.0; // радиус Земли, км
+            double Height = 0;
+            double Horizon = 0;
             // code here
-
+            while (Horizon <= L) 
+            {
+                answer++;
+                Height += v;
+                Horizon = Math.Sqrt((2 * R * Height) + (Height * Height));
+            }
             // end
 
             return answer;
         }
     }
-}
\ No newline at end of file
+
+}