diff --git a/golang/labs/lab4/lab4.go b/golang/labs/lab4/lab4.go
new file mode 100644
index 00000000..eba8dfb2
--- /dev/null
+++ b/golang/labs/lab4/lab4.go
@@ -0,0 +1,63 @@
+package function
+
+import (
+	"fmt"
+	"math"
+)
+
+const epsilon = 1e-9
+
+func CalculateY(x, a, b float64) float64 {
+	arccosArg := x*x - b*b
+	arcsinArg := x*x - a*a
+
+	fmt.Printf("x: %f, a: %f, b: %f\n", x, a, b)
+	fmt.Printf("arccosArg: %f, arcsinArg: %f\n", arccosArg, arcsinArg)
+
+	if arccosArg < -1 || arccosArg > 1 || arcsinArg < -1 || arcsinArg > 1 {
+		fmt.Println("Out of range")
+		return math.NaN()
+	}
+
+	asinValue := math.Asin(arcsinArg)
+	fmt.Printf("asinValue: %f\n", asinValue)
+
+	if math.Abs(asinValue) < epsilon {
+		fmt.Println("asinValue too small")
+		return math.NaN()
+	}
+
+	result := math.Acos(arccosArg) / asinValue
+	fmt.Printf("Result: %f\n", result)
+
+	return result
+}
+
+func Task_A(begin_x, end_x, delta_x, a, b float64) []float64 {
+	var answer_arr []float64
+	for x := begin_x; x < end_x; x += delta_x {
+		answer_arr = append(answer_arr, CalculateY(x, a, b))
+	}
+	return answer_arr
+}
+
+func Task_B(arguments []float64, a, b float64) []float64 {
+	var answer_arr []float64
+	for _, x := range arguments {
+		answer_arr = append(answer_arr, CalculateY(x, a, b))
+	}
+	return answer_arr
+}
+
+func RunLab4Task() {
+	fmt.Println("------------------------------------------")
+
+	resultA := Task_A(0.05, 0.95, 0.15, 0.06, 0.05)
+	fmt.Println(resultA)
+	fmt.Println("------------------------------------------")
+
+	arr := []float64{0.15, 0.26, 0.37, 0.48, 0.56}
+	resultB := Task_B(arr, 0.05, 0.07)
+	fmt.Println(resultB)
+	fmt.Println("------------------------------------------")
+}
diff --git a/golang/labs/lab6/lab6.go b/golang/labs/lab6/lab6.go
new file mode 100644
index 00000000..a1b284b2
--- /dev/null
+++ b/golang/labs/lab6/lab6.go
@@ -0,0 +1,43 @@
+package labs
+
+import "fmt"
+
+type Table struct {
+	length, width, height float64
+}
+
+func NewTable(length, width, height float64) Table {
+	return Table{
+		length: length,
+		width:  width,
+		height: height,
+	}
+}
+
+func (t *Table) SetDimensions(length, width, height float64) {
+	t.length = length
+	t.width = width
+	t.height = height
+}
+
+func (t *Table) GetLength() float64 {
+	return t.length
+}
+
+func (t *Table) GetWidth() float64 {
+	return t.width
+}
+
+func (t *Table) GetHeight() float64 {
+	return t.height
+}
+
+func RunLab6Task() {
+	myTable := NewTable(120, 60, 75)
+
+	fmt.Printf("Начальные размеры стола: Длина = %.2f, Ширина = %.2f, Высота = %.2f\n", myTable.GetLength(), myTable.GetWidth(), myTable.GetHeight())
+
+	myTable.SetDimensions(150, 70, 80)
+
+	fmt.Printf("Обновленные размеры стола: Длина = %.2f, Ширина = %.2f, Высота = %.2f\n", myTable.GetLength(), myTable.GetWidth(), myTable.GetHeight())
+}
diff --git a/golang/main.go b/golang/main.go
index bbc96c5c..52fc01c8 100644
--- a/golang/main.go
+++ b/golang/main.go
@@ -1,7 +1,15 @@
 package main
 
-import "fmt"
+import (
+	"fmt"
+
+	lab4 "isuct.ru/informatics2022/labs/lab4"
+	lab6 "isuct.ru/informatics2022/labs/lab6"
+)
 
 func main() {
+	fmt.Print()
+	lab4.RunLab4Task()
+	lab6.RunLab6Task()
 	fmt.Println("Kolbasov Nikita Andreevich")
 }
diff --git a/golang/tests/sample_test.go b/golang/tests/internal/sample_test.go
similarity index 99%
rename from golang/tests/sample_test.go
rename to golang/tests/internal/sample_test.go
index e4f2c320..821fd274 100644
--- a/golang/tests/sample_test.go
+++ b/golang/tests/internal/sample_test.go
@@ -12,3 +12,4 @@ func TestSumm(t *testing.T) {
 		t.Fatalf(`Summ(2,3) = %d, want 5, error`, summ)
 	}
 }
+