Q.
If m1 and m2 are the roots of the equation x2+(3+2)x+3−1=0 , then the area (in sq. units) of the triangle bounded by the lines y=m1x,y=m2x and y=2 is
Vertices of the triangle formed by the lines y=m1x,y=m2x&y=2 are (0,0),(m12,2) & (m22,2)
Area of the triangle =∣∣21∣∣0m12m22022111∣∣∣∣ =2∣∣m1m2m2−m1∣∣=2∣∣ac∣a∣D∣∣=2∣∣cD∣∣=2∣∣cb2−4ac∣∣ =23−17+43−4(3−1)=3−1211 =33+11 sq. units