Explanation: 
Another Explanation (5):
দেওয়া আছে, sinθ = 12/13
আমরা জানি, \(sin^2θ + cos^2θ = 1\)
সুতরাং, \(cos^2θ = 1 - sin^2θ\)
= \(1 - (12/13)^2\)
= \(1 - 144/169\)
= \((169 - 144) / 169\)
= \(25/169\)
অতএব, \(cosθ = ±\sqrt{25/169} = ±5/13\)
এখন, \(tanθ = sinθ / cosθ\)
যদি \(cosθ = 5/13\) হয়, তবে \(tanθ = (12/13) / (5/13) = 12/5\)
আবার, যদি \(cosθ = -5/13\) হয়, তবে \(tanθ = (12/13) / (-5/13) = -12/5\)
সুতরাং, \(tanθ = ±12/5\)
✅
