If a, b and A are given in a triangle and `c_(1), c_(2)` are possible values of the third side, then prove that `c_(1)^(2) + c_(2)^(2) - 2c_(1) c_(2) cos 2A = 4a^(2) cos^(2)A`

If a,b and /_A are given in a triangle and c_(1),c_(2) are the possible values of the remaining side,then c_(1)^(2)+c_(2)^(2)-2c_(1)c_(2)cos2A is equal to:

If a,b,A be given in a triangle and c_(1) and c_(2) be two possible value of the third side such that c_(1)^(2)+c_(1)c_(2)+c_(2)^(2)=a^(2), then a is equal to

If a, b and A are given and c_(1) , c_(3) are two values of the side c in the ambiguous case, then c_(1)^(2) + c_(2)^(2) - 2c_(1)c_(2) * cos 2 A =

If a, b, A be given in a triangle and c_1 and c_2 be two possible value of the third side such that c_1^2+c_1c_2+c_2^2=a^2, then a is equal to

If a, b, A be given in a triangle and c_1 and c_2 be two possible value of the third side such that c_1^2+c_1c_2+c_2^2=a^2, then a is equal to

If a , b ,\ A are given in a triangle and c_1a n d\ c_2 are two possible values of third side such that c_1^2+c_1c_2+c_2^2=a^2 , then A is equal to 30^0 (b) 60^0 (c) 90^0 (d) 120^0

In Delta^("le") ABC , if a , b and A are given then there are two triangles are formed with third side c_(1) " and " c_(2) such that then the value of (c_(1) - c_(2))^(2) + (c_(1) + c_(2))^(2) tan^(2)A =

In Delta ABC, a, b and A are given and c_(1), c_(2) are two values of the third side c. Prove that the sum of the area of two triangles with sides a, b, c_(1) and a, b c_(2) " is " (1)/(2) b^(2) sin 2A

In Delta ABC, a, b and A are given and c_(1), c_(2) are two values of the third side c. Prove that the sum of the area of two triangles with sides a, b, c_(1) and a, b c_(2) " is " (1)/(2) b^(2) sin 2A

In Delta ABC, a, b and A are given and c_(1), c_(2) are two values of the third side c. Prove that the sum of the area of two triangles with sides a, b, c_(1) and a, b c_(2) " is " (1)/(2) b^(2) sin 2A