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947 . f ( x ) = √ 4 − x 2  হলে f এর রেঞ্জ কত?

  • A. − 2 ≤ x ≤ 0
  • B. 0 ≤ x ≤ 2
  • C. − 2 ≤ x ≤ 2
  • D. − 4 ≤ x ≤ 4
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950 . f(x) = (4x - 7)/(2x - 4) এর অনুরূপ কোনটি?

  • A. f(-1) = 3/2
  • B. f(1) = 3/2
  • C. f(3) = 5/4
  • D. f(-2) = 15/8
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952 . f(x) = log (4-x2) হলে f এর রেঞ্জ কত? ..

  • A. -4 ≤ x ≤ 4
  • B. -2 ≤ x ≤ 0
  • C. 2 ≤ r ≤ 2
  • D. -2 ≤ x ≤ 2
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954 . f(x) = x² + 1/x + 1 এর অনুরূপ কোনটি?

  • A. f(1) = 1
  • B. f(0) = 1
  • C. f(-1) = 3
  • D. f(1) = 3
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