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If the planes vecr.(hati+hatj+hatk)=1, v...

If the planes `vecr.(hati+hatj+hatk)=1, vecr.(hati+2ahatj+hatk)=2 and vecr. (ahati+a^(2)hatj+hatk)=3` intersect in a line, then the possible number of real values of a is

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If the planes vecr.(hati+hatj+hatk)=q_(1),vecr.(hati+2ahatj+hatk)=q_(2)andvecr.(ahati+a^(2)hatj+hatk)=q_(3) intersect in a line, then the value of a is

If the planes vecr.(2hati-hatj+2hatk)=4 and vecr.(3hati+2hatj+lamda hatk)=3 are perpendicular then lamda=

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The angle between the planes vecr. (2 hati - 3 hatj + hatk) =1 and vecr. (hati - hatj) =4 is

The distance between the planes given by vecr.(hati+2hatj-2hatk)+5=0 and vecr.(hati+2hatj-2hatk)-8=0 is

Find the angles between the planes vecr(hati-2hatj-2hatk)=1 and vecr(3hati-6hatj+2hatk)=0

Find the angle between the planes vecr.(hati+hatj-2hatk)=3 and vecr.(2hati-2hatj+hatk)=2

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