How to prove a(CosB + CotA/2 SinB) = b+c This question has not been answered yet! Don't worry! You can check out similar questions with solutions below prove that for a triangle ABC: (cosB + cotA/2*sinB)=b+c.prove that tanA ×cotA = 1.Prove that cosB-C/2=b+c/2sinA/2prove cosec2A+ cot4A = cotA - cosec4AProve that tanA-cotA=2cosec2A
