(-2,4)
(−23,43)
(23,−43)
(2, -4)
Correct answer is C
The equation for a circle with centre coordinates (a, b) and radius r is
(x−a)2+(y−b)2=r2
Expanding the above equation, we have
x2−2ax+a2+y2−2by+b2−r2=0 so that
x2−2ax+y2−2by=r2−a2−b2
Taking the original equation given, 3x2+3y2−4x+8y=2 and making the coefficients of x2 and y2 = 1,
x2+y2−4x3+8y3=23, comparing, we have
2a=43;2b=−83
⟹a=23;b=−43
The probability of Jide, Atu and Obu solving a given problem are 112, 16 a...
Solve the inequality 2x2+5x−3≥0....
If 8Px8Cx=6, find the value of x....
Find the direction cosines of the vector 4i−3j....
Given that (√3−5√2)(√3+√2)=p+q√6, find q....
Find the area between line y = x + 1 and the x-axis from x = -2 to x = 0. ...
Find the remainder when 5x3+2x2−7x−5 is divided by (x - 2)....
Given that α and β are the roots of an equation such that α+β=3 an...