Math, asked by aravind2004kumar, 11 months ago

find the first term of 15th term of an ap​

Answers

Answered by sanyamshruti
1

Answer:

a_{n} = a +(n-1)d

a_{15} = a+ (15-1 )d\\ a_{15} = a+14d

Step-by-step explanation:

mark it as brainliest answer

Answered by Anonymous
0

To find:-

  • 15th term of ap

Solution:-

 \sf \longrightarrow \: a_{n} = a + (n - 1)d \\  \sf \ \longrightarrow \: a_{15}   = a + (15 - 1)d \\  \sf  \longrightarrow\: a_{15}  = a + (14)d \\  \sf \longrightarrow \:   \boxed{ \boxed{ \red{ \tt{a_{15}  = a + 14d}}}}

Therefore, the value of 15th term of ap is a+14d.

More details:-

• AP is a form of integers in which the difference between two consecutive terms is constant.

• General formula for AP: a, a+d, a+2d, a+3d.

• Sum of nth terms: \sf S_{n}=\dfrac{n}{2}\{2a+(n-1)d\}

• Sum of first n natural no.

\sf S_{n}=\dfrac{n(n+1)}{2}

Similar questions