Question

what is the 4th term of the AP if a=5 and d=2​

Answer 1

$\mathcal{\green{\underline{\blue{GIVEN:}}}}$

• The first term of AP (a) = 5.
• The common difference (d) = 2.
• Number of terms (n) = 4.

$\mathcal{\green{\underline{\blue{TO \:\: FIND:}}}}$

• The fourth term of AP.

$\mathcal{\green{\underline{\blue{SOLUTION:}}}}$

We need to use a specific formula, that is:

$\boxed{\bold{\large{a_n=a+(n-1)d}}}$

Where an is the nth term of a AP.

Substituting the values:

$\to \bf a_n=5+(4-1)2$

$\to \bf a_n=5+6$

$\to \bf a_n=11$

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