Equation of circles x2+y2=1=(1)2 ⇒x2+y2=(y−mx)2⇒x2=m2x2−2mxy⇒x2(1−m2)+2mxy=0tan45=±1−m22m2−0=1−m2±2m⇒1−m2=±2m⇒m2±2m−1=0⇒m=2−2±4+4=2−2±22=−1±2
If the chord y=mx+1 of the circle x2+y2=1 subtends an angle of measure 450 at the major segment of the circle then value of m is
Held on 30 Apr 2002 · Verified 6 Jul 2026.
2±2
−2±2
−1±2
none of these
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