What is proof by contradiction? Proof by contradiction?is a way of proving a?result is true?by showing that?the negation can not be true It is done by: Assuming the negation (opposite) of the resul...
What is proof by induction? Proof by induction?is a way of proving a?result is true for a set of integers?by showing that if it is?true for one integer then it is true for the next integer It can b...
What is proof? Proof is a series of logical steps which show a result is?true?for all specified numbers ‘Seeing’ that a result works for a few numbers is not enough to?show?that it will work for al...
What is compound interest? Interest is a small percentage paid by a bank or company that is added on to an initial investment Interest can also refer to an amount paid on a loan or debt, however IB...
Many real-life situations can be modelled using sequences and series, including but not limited to: patterns made when tiling floors; seating people around a table; the rate of change of a populati...
What is a geometric sequence? In a?geometric sequence, there is a?common ratio,?r,?between consecutive terms in the sequence For example, 2, 6, 18, 54, 162, … is a sequence with the rule?‘start at ...
?What is an arithmetic sequence? In an?arithmetic?sequence,?the difference between consecutive terms in the sequence is constant This?constant difference?is known as the?common difference,?d,?of th...
國際文憑大學(xué)預(yù)科課程（IBDP）放榜啦！ 據(jù)官網(wǎng)顯示，全球共有173878名學(xué)生在2022年5月的考試中獲得文憑課程（DP）和職業(yè)課程（CP）的成績。全球共有640位考生獲得滿分45分，跟去年相比少了一半左右。 深圳部分熱...
What is a sequence? A?sequence?is an ordered set of numbers with a rule for finding all of the numbers in the sequence For example 1, 3, 5, 7, 9, … is a sequence with the rule?‘start at one and add...
