00:01
So we contain here we have given a vector a that is 1, 2, 1.
00:06
So and that b vector is equal to a vector we have given and b vector is 2, 0, 1.
00:13
So these two vectors contained by a plane now from here and these two point passes through the point 1, minus of 2, minus of 1, minus of 1.
00:27
So plane passes through to given point b.
00:30
So we need to write here the equation of plane is ax plus by plus cz and plus d that is equal to 0.
00:40
So plane contain two vector a and b so we need to put here the value so it become from there a into 1 plus b into that is c into 1 plus d and that is equal to 0.
01:00
And second equation we need to write here that is a into 2 plus b is 0, b into 0 plus c into 1 and that is equal to 0.
01:14
So after simplify these two equation it become a plus 2b plus c that is equal to 0.
01:24
And next equation we have here 2a plus c is equal to 0 and let's say this is our equation number first and equation number second.
01:34
Now let's solve these two equations by cross multiplication method.
01:38
So it become a upon 2 minus 0 is equal to b is we need to write here that is 2 minus 1 and that is equal to c is 0 minus 4 and that is equal to k let's say...