1. In an arithmetic sequence t5=32 and t20=5. What is t30

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to find any term of an arithmetic sequence;

an = a1 + (n-1)d

where a_{1} is the first term of the sequence, d is the common difference, n is the number of the term to find.

....please wait for a short while I am working on the question..please

therefore, we shall take the difference to be 5 and because the sequence is a decreasing one, the formula will be

an = a1 - (n+1)d

t30= 32 - ( 5+1)5 because t30 will be our 5th term

=32-30

=2

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