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| 1. |
Find the value of `lambda` for which the given planes are perpendicular to the each other: i) `vecr.(2hati-hatj-lambdak)=7` and `vecr.(3hati+2hatj+2hatk)=9` ii) `vecr.(lambdahati+2hatj+3hatk)=5` and `vecr.(hati+2hatj-7hatk)+11=0` |
| Answer» Correct Answer - i) `lambda=2`, ii) `lambda=17` | |