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Recognising an AP, finding its nth term, and adding up its first n terms.
Arithmetic Progressions
Eighteen original Class 10 practice questions on arithmetic progressions, from spotting an AP to nth terms, sums and exam-level word problems, each with a complete step-by-step solution.
Arithmetic Progressions
See why the sum of an AP is n/2 times first plus last term, use both forms of the formula, find the number of terms from a sum, and recover the nth term from a formula for the sums.
Arithmetic Progressions
Derive the nth term formula of an AP and use it to find any term, decide whether a number is a term, build an AP from two terms, count from the end and solve savings and multiples problems.
Arithmetic Progressions
Learn what an arithmetic progression is: first term, common difference, the general form a, a + d, a + 2d, finite and infinite APs, and a sure method to test whether any list of numbers is an AP.