13sin A=12, cosA,tanA
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jjj
Step-by-step explanation:
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CosA = 5/13 and TanA = 12/5.
Step-by-step explanation:
13 SinA = 12.
SinA = Opposite/Hypotenuse.
SinA = 13/12.
By using Pythagoras theorem
→ AC² = AB² + BC².
AB = 12 , BC = ? , AC = 13.
→ 13² = 12² + BC².
→ 169 = 144 + BC².
→ 169 - 144 = BC².
→ 25 = BC².
→ √25 = BC.
→ 5 = BC (OR) BC = 5.
CosA = Adjacent/Hypotenuse.
CosA = 5/13.
TanA = Opposite/Adjacent.
TanA = 12/5.
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