E1 (D) - Find the value of d.x.

In a A B C , D and E are points on the sides A B and A C respectively such that D E B C If A D=8x-7,\ \ D B=5x-3,\ \ A E=4x-3 and E C=(3x-1) , find the value of x . .

In a A B C , D and E are points on the sides A B and A C respectively such that D E B C If A D=2 c m , A B=6 c m and A C=9 c m , find A E . (ii) If (A D)/(B D)=4/5 and E C=2. 5 c m , find A E . (iii) If A D=x , D B=x-2 , A E=x+2 and E C=x-1 , find the value of x .

In a A B C , D and E are points on the sides A B and A C respectively such that D E B C If A D=8x-7, D B=5x-3, A E=4x-3 and E C=(3x-1) , find the value of x . (ii) If A D=4x-3, A E=8x-7, B D=3x-1 and C E=5x-3 , find the volume x . (iii) If A D=2. 5 c m , B D=3. 0 c m and A E=3. 75 c m , find the length of A C .

In Figure, D E || B C , if A D=x ,D B=x-2,A E=x+2 and E C=x-1, find the value of xdot

In Fig.79, D E B Cdot Find the value of x\ a n d\ ydot

In Fig.79, D E B Cdot Find the value of x\ a n d\ ydot

y=int_(1)^(x)x.sqrt(ln t)dt. Find the value of (d^(2)y)/(dx^(2)) at x=e

In Figure, /_B A D=78^0,\ /_D C F=x^0a n d\ /_D E F=y^0dot Find the value of x\ a n d\ y

If D_x =24 ,x=-3, find the value of D.

If int_(0)^(1)(e^(-x)dx)/(1+e^(x))=log_(e)(1+e)+k, then find the value of k .