feat: add solution for task2 with sin and cos plot

Co-authored-by: aider (openrouter/qwen/qwen3-coder) <aider@aider.chat>

rozw

@@ -0,0 +1,28 @@
+import numpy as np
+import matplotlib.pyplot as plt
+
+# Generate x values from 0 to 4π
+x = np.linspace(0, 4*np.pi, 1000)
+
+# Calculate y values for both functions
+y1 = np.sin(x)
+y2 = np.cos(x)
+
+# Create the plot
+plt.figure(figsize=(10, 6))
+plt.plot(x, y1, color='blue', label='sin(x)')
+plt.plot(x, y2, color='red', label='cos(x)')
+
+# Add labels and title
+plt.xlabel('x')
+plt.ylabel('y')
+plt.title('Sine and Cosine Functions')
+
+# Add legend
+plt.legend()
+
+# Add grid for better readability
+plt.grid(True, alpha=0.3)
+
+# Display the plot
+plt.show()