Math, asked by snehasagar146, 5 hours ago

if A,B and C are intetior angles of trangle ABC then cos (B+C/2)is eqaul to

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Answered by sweetboy43

4

Answer:

If A, B and C are interior angles of a triangle ABC, then show that sin((B+C)/2)=cos(A/2). ∴cosA2=sin(B+C2)=L. H.

Step-by-step explanation:

hope it is helpful please follow add brain list

Answered by denisgabriel08

1

Answer:

maybe its 5

Step-by-step explanation:

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