Let p:x+y+z=1 Q: 2x+y+z=3 be 2 planes & Let L denote the line of inter of P and Q. Let P be the plane parsing through point (1 2 1) and normal to L. Then P represents which of the following ?
a. y-z=1
b. x+y+2z=5
c. x+z=2
d. x+2y+z=2
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Answer:
Correct option is
A
8
5
−
3
5
+
3
+
5
+
3
5
−
3
=
(
5
)
2
–(
3
)
2
(
5
+
3
)
2
+(
5
−
3
)
2
=
5−3
5+3+2
15
+5+3−2
15
=
2
16
=8
Step-by-step explanation:
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