Processing math: 28%

যদি r=xˆi+yˆj+zˆk হয়, তবে .r কত?

Created: 2 years ago | Updated: 6 months ago
Updated: 6 months ago
**'Provide valuable content and get rewarded! 🏆✨**
Contribute high-quality content, help learners grow, and earn for your efforts! 💡💰'
Content
Promotion