Let ABC be a right-angled triangle such that ∠B = 90°, AB = 12 cm and AC = 13 cm. Find the value of tan A - cot C.
मान लीजिए ABC एक समकोण (Right angle) त्रिभुज (Right-angled triangle) है जिसमें ∠B = 90°, AB = 12 cm और AC = 13 cm है। tan A - cot C का मान ज्ञात कीजिए।
Answer और ExplanationAnswer and explanation
Answer: (C) 0
BC = √13² − 12² = √25 = 5 cm
tan A = BCAB = 512
cot C = आसन्न भुजासम्मुख भुजा = BCAB = 512
tan A − cot C = 512 − 512 = 0
✓
मान 0 है।
BC = √13² − 12² = √25 = 5 cm
tan A = BCAB = 512
cot C = adjacentopposite = BCAB = 512
tan A − cot C = 512 − 512 = 0
✓
The value is 0.
Source: RRB NTPC (Graduate) · 19 Mar 2026 · Shift 3। Solution: Prashant Sir, Vijayastra।Source: RRB NTPC (Graduate) · 19 Mar 2026 · Shift 3. Solution by Prashant Sir, from Vijayastra.