If the planes vecr.(hati+2hatj-3hatk)=7 ...

If the planes `vecr.(hati+2hatj-3hatk)=7` and `vecr.(lambdahati+2hatj-7hatk)=26` are perpendicular to| each other then find the value of `lambda`.

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The correct Answer is:

`lambda=17`

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KUMAR PRAKASHAN-THREE DIMENSIONAL GEOMETRY-PRACTICE WORK

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