The triangle PQR of which the angles P, Q, R satisfy P = Q 2 R , is
Mathematics · JEE Main · NTA Exams — Trigonometry
The triangle PQR of which the angles P, Q, R satisfy \(\cos \mathrm{P}=\frac{\sin \mathrm{Q}}{2 \sin \mathrm{R}}\), is
- equilateral
- right angled
- any triangle
- isosceles
Answer
(D) isosceles
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