Question

find 4th term of sequence who's first term is 2 and common ratio is -1/2​

Answer 1

$\huge\mathcal{\fcolorbox{black}{black}{\blue{QUESTION࿐}}}$

Find 4th term of sequence who's first term is 2 and common ratio is -1/2 ?

$\huge\mathcal{\fcolorbox{black}{black}{\blue{ANSWER࿐}}}$

an = a1(r)n-1

a4 = (-2)(-1/2)3

a4 = (-2)(-125)

a4 = 250