What you’ll learn8 learning objectivesChoose one objective for a focused lesson, or study the complete topic.—SL 1.1—Scientific notation• Use numbers in the form a x 10^k where 1 <= a < 10 and k is an integer.• Calculator/computer notation such as 5.2E30 is not acceptable.Syllabus objective—SL 1.2—Arithmetic sequences and series• Use nth-term, finite-sum and sigma notation for arithmetic sequences.• Identify first term and common difference; apply to contexts such as simple interest.Syllabus objective—SL 1.3—Geometric sequences and series• Use nth-term, finite-sum and sigma notation for geometric sequences.• Identify first term and common ratio; apply to growth/decay contexts.Syllabus objective—SL 1.4—Financial applications• Apply geometric sequences to compound interest and annual depreciation.• Use technology/financial packages; consider inflation and compounding frequency.Syllabus objective—SL 1.5—Integer exponents and logarithms• Use laws of exponents with integer exponents.• Understand base-10 and natural logarithms; ax=b is equivalent to log_a(b)=x.Syllabus objective—SL 1.6—Approximation and error• Use decimal places, significant figures and appropriate accuracy.• Work with upper/lower bounds of rounded numbers.• Calculate percentage errors and judge whether results are reasonable.Syllabus objective—SL 1.7—Amortization and annuities• Use technology for amortization and annuity problems.• Payments are made at the end of each period in examinations.• Knowing the annuity formula may help, but it is not examined.Syllabus objective—SL 1.8—Technology for equations• Use technology to solve systems of up to three linear equations.• Use technology to solve polynomial equations.• Know terms such as roots and zeros; exam systems have unique solutions.Syllabus objective