Let ABC be a right-angled triangle such that ∠B = 90°. If tan A = 1, then find the value of cosec A sec A.
मान लीजिए ABC एक समकोण (Right angle) त्रिभुज (Right-angled triangle) है जिसमें ∠B = 90° है। यदि tan A = 1 है, तो cosec A sec A का मान ज्ञात कीजिए।
Answer और ExplanationAnswer and explanation
Answer: (B) 2
tan A = 1 ⇒ A = 45°
cosec 45° × sec 45° = √2 × √2 = 2
✓
मान 2 है।
tan A = 1 ⇒ A = 45°
cosec 45° × sec 45° = √2 × √2 = 2
✓
The value is 2.
Source: RRB NTPC (Graduate) · 18 Mar 2026 · Shift 2। Solution: Prashant Sir, Vijayastra।Source: RRB NTPC (Graduate) · 18 Mar 2026 · Shift 2. Solution by Prashant Sir, from Vijayastra.