An isosceles triangle ABC is right-angled at B. D is a point inside the triangle ABC. P and Q are the feet of the perpendiculars drawn from D on the side AB and AC respectively of ΔABC. If AP = a cm, AQ = b cm and ∠BAD = 15°, sin 75° = ?

• ক a2ba2b
• খ 3–√a2b3a2b
• গ 2a3–√b2a3b ✅ সঠিক উত্তর
• ঘ 2b3–√a2b3a