tmua 2018 Q2

tmua · Uk · paper1 1 marks Arithmetic Sequences and Series Find Common Difference from Given Conditions

An arithmetic progression has first term $a$ and common difference $d$.
The sum of the first 5 terms is equal to the sum of the first 8 terms.
Which one of the following expresses the relationship between $a$ and $d$ ?
A $a = - \frac { 38 } { 3 } d$
B $a = - 7 d$
C $a = - 6 d$
D $a = 6 d$
E $\quad a = 7 d$
F $\quad a = \frac { 38 } { 3 } d$

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An arithmetic progression has first term $a$ and common difference $d$.

The sum of the first 5 terms is equal to the sum of the first 8 terms.

Which one of the following expresses the relationship between $a$ and $d$ ?

A $a = - \frac { 38 } { 3 } d$

B $a = - 7 d$

C $a = - 6 d$

D $a = 6 d$

E $\quad a = 7 d$

F $\quad a = \frac { 38 } { 3 } d$

Paper Questions

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