Let a line pass through the point and be parallel to the line . If the distance of from the point is , then is equal to :...

L:x - 2 1 = y - 3 - 1 = z - 1 - 1 = Any point on L can be taken as B( + 2, - + 3, - + 1) Let A(5,3,8) So, AB\,.\,( i - j - k) = 0 [( - 3) i - j - ( + 7) k]\,.\,[ i - j - k] = 0 - 3 + + + 7 = 0 = - 4 3 AB = 13 3 i + 4 3 i - 17 3 k ...

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Let a line L pass through the point P231 and be parallel to : null (Mathematics) | DivineJEE

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Mathematics

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Mathematics

Let a line

L

pass through the point

P(2,3,1)

and be parallel to the line

x+3 y-2 z-2=0=x-y+2 z

. If the distance of

L

from the point

(5,3,8)

\alpha

, then

3 \alpha^2

is equal to :

Select an option to instantly check whether it is correct or wrong.

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For integers n and r let n r nCr ifn ge r ge 0 0 otherwise

The integral int_0^1 \frac{1}{7^{\left[\frac{1}{x}\right]}} {dx}, where [.] denotes the greatest integer function is equal to

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Ten different letters of an alphabet are given. Words with five letters are formed from these given letters. Then the number of words which have atleast one letter repeated, is

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