In a ` Delta A B C ,` prove the following :If `a=18 ,\ b=24 ,\ c=30` , find `cos A ,\ cos B\ a n d\ cos Cdot`

In a ABC, prove the following : In a ABC, if a=18,b=24,c=30, find cos A,cos B and cos C.

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 triangle ABC, if a = 18, b = 24 and c = 30, find cos A, cos B and cos C.

In Delta A B C ,\ if\ a=18 ,\ b=24\ a n d\ c=30\ a n d\ /_C=90^0 find sin A ,\ sin B\ a n d\ sin Cdot

In any triangle ABC, if a=18,b=24,c=30, find cos A,cos B,cos C

In a DeltaA B C , prove the following : a\ cos A+b\ cos B+c cos C=2bsinA sin\ Cdot

In a Delta A B C , prove the following : (c-b\ cos A)/(b-c\ cos A)=(cosB)/(cos C)

In a Delta A B C , prove the following : \ a(cos B+cos C-1)+b(cos C+cos A-1)+c(cos A+cos B-1)=0 .

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 any triangle A B C , prove that following: \ a\ (cosB cos C+cos A)=b(cos C\ cos A+cos B)=c(cos A\ cos B+cos C)dot