Prove that sinA + sinB / cosA + cosB = tan(A+B/2)
Answers
Answered by
1
Answer:
tan(a+b/2)
Step-by-step explanation:
2sin(a+b/2)cos(a+b/2)/2cos(a+b/2)cos(a+b/2)
hence proved
Answered by
0
Answer:
Sina + sin b = 2sin(a+b/2)cos(a-b/2)
Cos a + cos b = 2cos(a+b/2)cos(a-b/2)
Step-by-step explanation:
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