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| 1. |
यदि `veca=2hati+2hatj-3hatk,vecb=hati-2hatj+2hatk,vecc=4hati+3hatj+3hatk` हो, तो `|veca+2vecb+2vecc|` का मापांक ज्ञात करो। |
| Answer» Correct Answer - `sqrt(209)` | |