Question

$\dag\sf{ \: Please \: Help \: Me \: Guys}$​

Answer 1

Answer:

Given :-

• The nth term of an AP is 3 + n/4.

To Find :-

• What is the value of 8th term of an AP.

Solution :-

Given :

• nth term of an AP = 3 + n/4

According to the question,

$\dashrightarrow \bf a_n =\: \dfrac{3 + n}{4}$

So, it's 8th term of an AP will be :

We have :

$\dashrightarrow \sf a_8 =\: \dfrac{3 + 8}{4}$

$\dashrightarrow \sf a_8 =\: \dfrac{11}{4}$

$\dashrightarrow \sf\boxed{\bold{\red{a_8 =\: \dfrac{11}{4}}}}$

$\therefore$ The 8th term of an AP is 11/4 .

Hence, the correct options is option no (B) 11/4 .

EXTRA IMPORTANT FORMULA :-

$\bigstar$ General term or nth term of an AP Formula :

$\leadsto \sf\bold{\pink{a_n =\: a + (n - 1)d}}$

where,

• a = First term of an AP
• d = Common difference of an AP
• n = Number of terms of an AP

$\bigstar$ Sum of first n terms of an AP Formula :

$\leadsto \sf\bold{\purple{S_n =\: \dfrac{n}{2}\bigg\{2a + (n - 1)d\bigg\} }}$

where,

• a = First term of an AP
• d = Common difference of an AP
• n = Number of terms of an AP

Answer 2

Answer:

Just replace with 8.

3 + 8 = 1 1

4 4