Q1). If the point of p(x, y) from A (6, 2) , B (-2,6)
or equal PT y = 2x. Q2) If R (x,y) is a point on the line segment joing
the point (a,b) and Q then (b, a) then
prove that n+y = a+b . From coordinator geometry pls solve this question i will you make a bralist
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Answered by
3
Answer:
Yr your Question is so confusing...
Step-by-step explanation:
Answered by
0
Step-by-step explanation:
Q1. p(x,y) A(6,2) B(-2,6)
∵PA=PB
∴PA²=PB²
(x-6)²+(y-2)²=(x+2)²+(y-6)²
x²-12x+36+y²-4y+4=x²+4x+4+y²-12y+36
-12x-4y=4x-12y
12y-4y=4x+12x
8y=16x
y=2x
Q2. Since R(x, y) is a point on the line segment joining the point, P(a, b) and Q(b, a).
∴ P(a, b), Q(b, a) and R(x, y)are the collinear.
⇒ Area of ΔPQR = 0
Area of triangle whose vertices are (x1, y1), (x2, y2) and (x3, y3) .
a(a-y)+b(y-b)+x(b-a)=0
-ay+by+bx-xa=b^2-a^2
(x+y)(b-a)=(b-a)(b-a)
x+y=b-a
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