plzz give me answer fast
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Sin(A/2)
AM I CORRECT OR I AM CORRECT?
AM I CORRECT OR I AM CORRECT?
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Omnamhashivay:
Dhanyavad for marking as brainlist
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Hey friend, here's your answer
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Let the angles be A, B ,C.
angle A+angle B+ angle C=180°
=>B+C÷2=180-A÷2. (dividing both sides by 2)
=>B+C÷2=90-A/2
=>cos (B+C÷2)=cos(90-A/2). (multiplying both sides with cos)
=>cos(B+C÷2)=sin A/2.
Hope it helped you.
Please make it the brainliest
______________________
______________
Let the angles be A, B ,C.
angle A+angle B+ angle C=180°
=>B+C÷2=180-A÷2. (dividing both sides by 2)
=>B+C÷2=90-A/2
=>cos (B+C÷2)=cos(90-A/2). (multiplying both sides with cos)
=>cos(B+C÷2)=sin A/2.
Hope it helped you.
Please make it the brainliest
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