PYQPulse
HomeMocksPracticePYQsUpdatesDashboard
PYQPulse

Timing-accurate mock tests and PYQs for SSC, Banking and Railway exams — so the real paper feels like a revision.

Exams

  • SSC exams
  • Banking exams
  • Railway exams
  • All exams

Practice

  • Practice questions
  • Mock test series
  • Sectional tests
  • Year-wise PYQs
  • Performance analytics

Company

  • About us
  • Help Centre
  • Pricing
  • Sign in

Legal

  • Privacy Policy
  • Terms of Service

Contact

  • hello@testwala.co.in
  • Telegram
  • +91 62816 87760

Practice interface modeled on the official exam pattern — not the official examination. PYQPulse is not affiliated with the Staff Selection Commission, IBPS, SBI, RBI, NABARD, SEBI or Indian Railways.

© 2026 PYQPulse. All rights reserved.

Built for aspirants, by aspirants.

HomeMocksPracticeStats
  1. Home
  2. ›
  3. PYQs
  4. ›
  5. RRB Junior Engineer / DMS / CMA
  6. ›
  7. 2019
  8. ›
  9. Q1175

RRB Junior Engineer / DMS / CMA 2019 · Question 1175 of 3719

If $$\tan A + \tan B = a$$ and $$\cot A + \cot B = b$$, then $$\frac{1}{a} - \frac{1}{b}$$ is equal to .......

  1. A$$\sin (A + B)$$
  2. B$$\cos (A + B)$$
  3. C$$\cot (A + B)$$Correct
  4. D$$\tan (A + B)$$

Answer: C. $$\cot (A + B)$$

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 2019 CBT-1 (25-May-2019 Shift 2) — cracku.in solved paper with answer key · reliable-secondary

← Q1174View full paper (3719 questions)Q1176 →

Practice the full RRB Junior Engineer / DMS / CMA 2019 paper

Timed test with all 3719 questions, just like the real exam.

Start test