Geometric, found by multiplying or dividing, Arithmetic, found by adding or subtracting, a1, first term in the sequence, an, the nth term in the sequence, d, common difference between terms, n, the term number we are looking for

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟