MATHEMATICS PROBLEM SOLVER

It is a site for parents, students and teachers. This site can help O-LEVEL or GCSE secondary school students in mastering mathematics subject. It intends to involve the learners by making them follow up the examples before they can do questions on their own at the TRY THIS.... section. There are some videos, tests, quizzes and past examination questions. Learning the examples will ultimately give students the required confidence in solving various questions in mathematics.

Monday, 26 February 2018

A. P. 2

The 1st term of an A.P. is 70 and the common difference is 97. Find the nth term.

Solution

A₁= 70, d = 97

A_n = A₁ + (n-1)d

A_n = 70 + (n-1)97

A_n = 70 + 97n – 97

A_n = 97n + 70 – 97

A_n = 97n – 27 [since 70 - 97= -27]

Hence the nth term is 97n - 27.

TRY THIS……………

The 1st term of an A.P. is 108 and the common difference is 46. Find the nth term.

MATHEMATICS PROBLEM SOLVER

Monday, 26 February 2018

A. P. 2

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