Maths

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Across
  1. 2. the zeroes of the quadratic polynomial x2 + 99x + 127 are
  2. 3. O is a point on side PQ of a APQR such that PO = QO = RO, then ∆ABC~∆DFE If in two As ABC and DEF, ABDF=BCFE=CAED, then
  3. 4. if the zeroes of the quadratic polynomial ax² + bx + c, c 0 are equal, then
  4. 5. If cos(α + β) = 0, then sin(α – β) can be reduced to
  5. 6. The points (1,1), (-2, 7) and (3, -3) are
  6. 9. If x5 + 2x4 + x + 6 is divided by g(x) and quo-tient is x² + 5x + 7, then the possible degree of remainder is:
  7. 10. 2 tan 30°/(1 + tan230°) =
  8. 11. sin (90° – A) and cos A are:
  9. 12. The zeroes of the quadratic polynomial x² + px + p, p ≠ 0 are
  10. 13. The zeroes of the quadratic polynomial 3x² – 48 are
Down
  1. 1. The zeroes of the quadratic polynomial x² – 18x + 81 are
  2. 5. the zeroes of the quadratic polynomial x² + kx + k, k? 0
  3. 7. If the zeroes of the quadratic polynomial Ax² + Bx + C, C # 0 are equal, then
  4. 8. The zeroes of the quadratic polynomial x² + 1750x + 175000 are