Zen Sir

Zen Sir

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Welcome to Zen Tutorial
We make learning simple and smart
đŸ”Ŧ Physics (HSC, SSC, O & A Level)
đŸ’ģ ICT by coding
🧠 Math with logic
đŸŽ¯ Learn â€ĸ Think â€ĸ Innovate
Curiosity starts here

17/02/2026

āϏāĻ¤ā§āϝāĻŋ āĻŽāĻŋāĻĨā§āϝāĻž āϜāĻžāύāĻŋ āύāĻž āϤāĻŦ⧇
āĻĒā§‹āϞāĻžāĻĒāĻžāύ āĻ­ā§Ÿā§‡ āĻ“ āϝāĻĻāĻŋ āĻāĻ•āϟ⧁ āĻĒ⧜āϤ⧋
āĻŦāĻžāĻ‚āϞāĻžāĻĻ⧇āĻļ⧇āϰ āĻĒ⧜āĻžāĻļ⧁āύāĻž āĻļ⧇āώ

17/02/2026

Differentiation | First Principle of f(x)=X tan X

15/02/2026

Full Mathematical problem of Thermal Expansion
Length, Area & Volume Expansion

āϰ⧇āϞ āϞāĻžāχāύ⧇ āĻĢāĻžāρāĻ• āĻĨāĻžāϕ⧇ āϕ⧇āύ?

āĻ•āĻžāρāĻšā§‡āϰ āϜāĻžāύāĻžāϞāĻžā§Ÿ āĻĢāĻžāρāĻ•āĻž āϜāĻžā§ŸāĻ—āĻž āϰāĻžāĻ–āĻž āĻšā§Ÿ āϕ⧇āύ?

āĻ—āϰāĻŽ āĻšāϞ⧇ āϞ⧋āĻšāĻžāϰ āĻĻāĻŖā§āĻĄ āϞāĻŽā§āĻŦāĻž āĻšā§Ÿ āϕ⧇āύ?

👉 āĻ•āĻžāϰāĻŖ: Thermal Expansion
When temperature increases, solids expand.

15/02/2026

Thermal Expansion
Length, Area & Volume Expansion

āϰ⧇āϞ āϞāĻžāχāύ⧇ āĻĢāĻžāρāĻ• āĻĨāĻžāϕ⧇ āϕ⧇āύ?

āĻ•āĻžāρāĻšā§‡āϰ āϜāĻžāύāĻžāϞāĻžā§Ÿ āĻĢāĻžāρāĻ•āĻž āϜāĻžā§ŸāĻ—āĻž āϰāĻžāĻ–āĻž āĻšā§Ÿ āϕ⧇āύ?

āĻ—āϰāĻŽ āĻšāϞ⧇ āϞ⧋āĻšāĻžāϰ āĻĻāĻŖā§āĻĄ āϞāĻŽā§āĻŦāĻž āĻšā§Ÿ āϕ⧇āύ?

👉 āĻ•āĻžāϰāĻŖ: Thermal Expansion
When temperature increases, solids expand.

15/02/2026

Thermal Expansion
Length, Area & Volume Expansion
Problem 05
āϰ⧇āϞ āϞāĻžāχāύ⧇ āĻĢāĻžāρāĻ• āĻĨāĻžāϕ⧇ āϕ⧇āύ?

āĻ•āĻžāρāĻšā§‡āϰ āϜāĻžāύāĻžāϞāĻžā§Ÿ āĻĢāĻžāρāĻ•āĻž āϜāĻžā§ŸāĻ—āĻž āϰāĻžāĻ–āĻž āĻšā§Ÿ āϕ⧇āύ?

āĻ—āϰāĻŽ āĻšāϞ⧇ āϞ⧋āĻšāĻžāϰ āĻĻāĻŖā§āĻĄ āϞāĻŽā§āĻŦāĻž āĻšā§Ÿ āϕ⧇āύ?

👉 āĻ•āĻžāϰāĻŖ: Thermal Expansion
When temperature increases, solids expand.

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Gulshan
Dhaka
1217