ডেল্টা এবিসিতে যদি 2 cos. (AC)/2 = (a+c)/(sqrt(a^(2)-ac+c^(2))), তো কোণ B का मान है - | CLA...

In Delta ABC, if A+C=2B, prove that 2cos((A-C)/(2))=(a+c)/(sqrt(a^(2)-ac+c^(2)))

In triangle ABC, if A+C=2B , then (a+c)/(sqrt(a^(2)-ac+c^(2))) is equal to

In DeltaABC , if 2 cos ((A-C)/2) = (a+c)/sqrt(a^2 -ac+c^2) [Note: All symbols used have their usual meaning in triangle ABC]

(a+2b)^2-(a-2b)^2 is equal to: (a+2b)^2-(a-2b)^2 का मान है :

(a+b+c)(a^(2)+b^(2)+c^(2)-ab-bc-ac)

In Delta ABC if the angle A,B,C are in A.P.then (a+c)/(sqrt(a^(2)-ac+c^(2)))=

If a,b,c are in A.P.then ((a-c)^(2))/((b^(2)-ac)=)

a^(2)-b^(2)+c^(2)-1+2b-2ac