In a triangle ABC If ( 2 cos A)/a + ( c...

In a triangle ABC If ` ( 2 cos A)/a + ( cos B)/b + (2 cos C)/c = a/(bc) + b/(ca)`, find the angle A.

A

`45^(@)`

B

`30^(@)`

C

`90^(@)`

D

`60^(@)`

Verified by Experts

The correct Answer is:

C

Similar Questions

Explore conceptually related problems

In triangleABC, (cos2A)/(a^(2))-(cos2B)/(b^(2))=

In a triangle ABC, if a = 2, b = 3 and c=4 , then cos A is equal to

In a triangle ABC, if sin A sin B= (ab)/(c^(2)) , then the triangle is :

In triangle ABC, a=5, b=4 and cos(A-B)=(31)/(32) In this triangle, c=

If a, b, c are the sides of the triangle ABC such that a^(4) +b^(4) +c^(4)=2c^(2) (a^(2)+b^(2)), then the angle opposite to the side c is-

In a triangle ABC, if the sides are a=3, b=5, c=4, thenb the value of (sin ""B/2+ cos ""B/2) is equal to-

If in a triangle A B C ,acos^2(C/2)+c cos^2(A/2)=(3b)/2, then the sides a ,b , and c

Let D be the middle point of the side BC of a triangle ABC. If the triangle ADC is equilateral, then a^(2) : b^(2) : c^(2) is equal to