ln Delta^(le)ABC,sin(A)/(2)+Cos((B-C)/(2))=

In Delta ABC , sin"(A)/(2) + cos""((B-C)/(2))=

In Delta ABC sin((A)/(2))*cos((B)/(2))=(a+c-b)/(2c)k then k=

In Delta ABC, cos""(A)/(2) + sin""((B-C)/(2))=

In Delta ABC , sum sin""(A)/(2) cos""((B-C)/(2))=

Statement I In any triangle ABC a cos A+b cos B+c cos C le s. Statement II In any triangle ABC sin ((A)/(2))sin ((B)/(2))sin ((C)/(2))le 1/8

Statement I In any triangle ABC a cos A+b cos B+c cos C le s. Statement II In any triangle ABC sin ((A)/(2))sin ((B)/(2))sin ((C)/(2))le 1/8