[" Home work - "],[0quad (2a-5b-7c)^(2)]

Home work 1||2

In a triangle A B C ,a=4,b=3,/_A=60^0 then c is root of the equation c^2-3c-7=0 (b) c^2+3c+7=0 (c) c^2-3c+7=0 (d) c^2+3c-7=0

In a triangle ABC,a=4,b=3,/_A=60^(@) then c is root of the equation c^(2)-3c-7=0 (b) c^(2)+3c+7=0(c)c^(2)-3c+7=0(d)c^(2)+3c-7=0

A can complete (1)/(3) of a work in 5 days and B(2)/(5) of the work in 10 days.In how many days both A and B together can complete the work? a.7(1)/(2) b.9(3)/(8) c.8(4)/(5) d.10

Expand (i) (2a-5b-7c)^2 (ii) ( -3a+4b-5c)^2 (iii) ((1)/(2)a-(1)/(4)b+2)^2

If a,b,c are real numbers satisfying the condition a+b+c=0 then the rots of the quadratic equation 3ax^(2)+5bx+7c=0 are

The area of triangle A B C is 20c m^2dot The coordinates of vertex A are -5,0) and those of B are (3,0)dot The vertex C lies on the line x-y=2 . The coordinates of C are (a) (5,3) (b) (-3,-5) (-5,-7) (d) (7,5)

The area of triangle A B C is 20c m^2dot The coordinates of vertex A are -5,0) and those of B are (3,0)dot The vertex C lies on the line x-y=2 . The coordinates of C are (5,3) (b) (-3,-5) (-5,-7) (d) (7,5)