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2ˆi+aˆj+ˆk এবং -4ˆi+2ˆj+ˆk ভেক্টরদ্বয় পরস্পর লম্ব হবে যদি a এর মান হয় -

Created: 3 years ago | Updated: 2 months ago
Updated: 2 months ago
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