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PG TRB Maths Previous Year Question Papers

TRB Model Questions
 
5. The set [0, 1) is
 
  • A. open
  • B. closed
  • C. neither open nor closed
  • D. either open or closed
Answer: C.
neither open nor closed
 
6. The number of normal’s drawn to a rectangular hyperbola is
 
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Answer: D.
4
 
 
7. Eccentricity of rectangular hyperbola is
 
  • A. 2
  • B. 3
  • C. √2
  • D. √3
Answer: C.
√2
 
8. The roots of the equation x2+6x+9 = 0 are
 
  • A. Zero
  • B. Imaginary
  • C. Equal roots
  • D. Real and distinct
Answer: C.
Equal roots