Example 1
أي القواعد التالية تصف النمط: 4 ، 9 ، 14 ، 19 ، ... (n رقم الحد)؟
- An + 5
- B4n + 5
- C5n − 1
- D5n + 4
Show the solution
Correct answer: C
الفرق ثابت 5، وعند n = 1 يكون 5 − 1 = 4، وعند n = 2 يكون 10 − 1 = 9.
A skill of Mathematics in Nafes National Test — Sixth Primary. Practise it with explained questions, and review your mistakes until you master it.
Pick your answer, then open the solution to see the right answer and its explanation.
Correct answer: C
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