If the sides of a `Delta`ABC are a = 4, b = 6 and c = 8, show that 4 cos B + 3 cos C = 2.

If the sides of Delta ABC are a = 4, b = 6 , c = 8 , then show that 4 cos B + 3 cos C = 2.

If the sides of a DeltaA B C\ are a=4,\ b=6\ a n d\ c=8, show that 4cosB+3cos C=2.

If the sides of a ABC are a=4,b=6 and c=8, show that 4cos B+3cos C=2

In a ABC, prove the following: The sides of a triangle area a=5,b=6 and c=8, show that 8cos A+16cos B+4cios C=17

In a DeltaA B C , prove the following : The sides of a triangle area a=5,\ b=6\ a n d\ c=8 , show that 8cosA+16 cos B+4c cos C=17.

In Delta ABC if a =2, b= 3, c = 4 then cos A + cos B + cos C =

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

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

In Delta ABC , if the sides are a = 3, b = 5 and c = 4 , then sin . B/2 + cos . B/2 is equal to

In Delta ABC , if a= 2, b= 3 , c=4 then cos A =