In a ` A B C` , if `a=3,b=5a n dc=7,fin dcos A ,cos Ba n dcos Cdot`

In a Delta A B C , If a=18 ,\ b=24 ,\ c=30 , find the value of cos A ,\ cos B\ a n d\ cos Cdot

In a A B C , if /_A=120^0a n d\ A B=A Cdot Find /_B\ a n d\ /_C

In A B C ,\ /_A=100^0\ a n d\ A B=A Cdot Find /_B\ a n d\ /_Cdot

Vectors drawn the origin O to the points A , Ba n d C are respectively vec a , vec ba n d vec4a- vec3bdot find vec A Ca n d vec B Cdot

In A B C ,\ /_A=100^0a n d\ A B=A Cdot Find /_B\ a n d\ /_C

Statement 1 : Points A(1,0),B(2,3),C(5,3),a n dD(6,0) are concyclic. Statement 2 : Points A , B , C ,a n dD form an isosceles trapezium or A Ba n dC D meet at Edot Then E A*E B=E C*E Ddot

Statement 1 : Points A(1,0),B(2,3),C(5,3),a n dD(6,0) are concyclic. Statement 2 : Points A , B , C ,a n dD form an isosceles trapezium or A Ba n dC D meet at Edot Then E A. E B=E C.E D dot

Statement 1 : Points A(1,0),B(2,3),C(5,3),a n dD(6,0) are concyclic. Statement 2 : Points A , B , C ,a n dD form an isosceles trapezium or A Ba n dC D meet at Edot Then E AdotE B=E CdotE Ddot

Consider a triangle A B C and let a , ba n dc denote the lengths of the sides opposite to vertices A , B ,a n dC , respectively. Suppose a=6,b=10 , and the area of triangle is 15sqrt(3)dot If /_A C B is obtuse and if r denotes the radius of the incircle of the triangle, then the value of r^2 is

Consider a triangle A B C and let a , ba n dc denote the lengths of the sides opposite to vertices A , B ,a n dC , respectively. Suppose a=6,b=10 , and the area of triangle is 15sqrt(3)dot If /_A C B is obtuse and if r denotes the radius of the incircle of the triangle, then the value of r^2 is