` Delta ABC` में , a = 3 , b= 4 , c = 2 , तो ` cos.A/2 ` का मान है -

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

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

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

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

In the given figure, if AD = 3, DE = 4, AB = 12, BF = 2, FG = 6, BC = 10. then the value of M/N is : दिए गए आकृति में, यदि AD = 3, DE = 4, AB = 12, BF = 2, FG =6, BC = 10. M/N का मान है: (Assume : M is the area of the quadrilateral FGDE and N is the area of the triangle ABC.) (मान लें: M चतुर्भज FGDE का क्षेत्रफल है और N त्रिभुज ABC का क्षेत्रफल है।)

In triangle ABC, a = 2, b = 3,c = 4 , then the value of cos A is

If A:B = 3:4, B:C = 2:3, then the value of A + B : B + C : C + A will be : यदि A:B = 3:4, B:C = 2:3 है, तो A + B : B + C : C + A का मान है :

If a : b = 2 : 5 , c : b = 3 : 4 , then a : b : c is equal to : यदि a : b = 2 : 5 , c : b = 3 : 4 है, तो a : b : c का मान ज्ञात करें |

If a^2 + b^2 + c^2 = 2(a -b -c)- 3 ,then the value of (a- b + c) is यदि a^2 + b^2 + c^2 = 2(a -b -c)- 3 तो (a- b + c) का मान है-

If (5a - 3b) : (4a - 2b) = 2:3, then a:b is equal to: यदि (5a - 3b) : (4a - 2b) = 2:3 है, तो a : b का मान क्या होगा ?