In a triange, the line joining the circumcentre to the incentre is parallel to BC, then `cos B + cos C ` is equal to

In a triangle ABC , the line joining the circumcentre and incentre is parallel to BC, then Cos B + Cos C is equal to:

In triangle ABC, the line joining the circumcenter and incenter is parallel to side AC, then cos A + cos C is equal to

In triangle ABC, the line joining the circumcenter and incenter is parallel to side BC, then cosA+cosC is equal to -1 (b) 1 (c) -2 (d) 2

In any Delta ABC line joiningcircumcentre (O) and incentre (I) is parallel to AC, then OI is equal to

Let ABC be a triangle in which the line joining the circumecentre and incentre is parallel to base BC of the triangle. Then answer the following questions : If ODEI is a square where O and I stands for circumcentre and incentre, respectively and D and E are the point of perpendicular from O and I on the base BC, then

Let ABC be a triangle in which the line joining the circumecentre and incentre is parallel to base BC of the triangle. Then answer the following questions : Then range of angle A is

Let ABC be a triangle in which the line joining the circumecentre and incentre is parallel to base BC of the triangle. Then answer the following questions : If angleA=60^(@) , then Delta ABC is

In triangle ABC if the line joining incenter to the circumcenter is parallel to the base BC, then the value of (cosB + cosC-1) is equal to

In triangle ABC, line joining the circumcenter and orthocenter is parallel to side AC, then the value of tan A tan C is equal to

If the line joining the incentre to the centroid of a triangle ABC is parallel to the side BC. Which of the following are correct ?