If each of the lines 5x+8y=13 and 4x−y=3 contains a diameter of the circle x2+y2−2(a2−7a+11) x−2(a2−6a+6)y+b3+1=0, then :
Held on 9 Apr 2013 · Verified 6 Jul 2026.
a=5 and b∈/(−1,1)
a=1 and b∈/(−1,1)
a=2 and b∈/(−∞,1)
a=5 and b∈(−∞,1)
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