Mathematics · Vectors
माना vector a = 2î + 3ĵ + 4k̂, vector b = î - 2ĵ + k̂, और vector c = î + ĵ - k̂ तीन सदिश हैं। एक सदिश r के लिए जो vector r × vector a = vector b और vector r · vector c = 3 को संतुष्ट करता है, |vector r| का मान क्या है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1√55
- 2√138
- 3√155✓
- 4√170
सही उत्तर देखें
√155
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