Math, asked by venuchinnu2233, 8 months ago

2,5,8,11,14 sum of 50term​

Answers

Answered by dj260
0

Answer:

370

#answerwithquality

Answered by sachinarora2001
0

Given ÷

AP series

2,5,8,11,14 ...............

a => 2

d => a2- a1

d => 5 - 2

d => 3

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Concept to find out.

Sum of 50th term

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Solution- .

 \color{red} \boxed{sn =  >  \frac{n}{2}(2a + (n - 1) \times d )} \\

s50 =  >  \frac{50}{2} (2 \times 2 + (50 - 1) \times 3) \\  \\ s50 =  > 25(4 + 49 \times 3) \\  \\ s50 =  > 25 \times 4 + 147 \\  \\ s50 =  > 25 \times 151 \\  \\  \boxed{s50 =  > 3775}

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Other important formula....

 \color{blue} \boxed{an =  > a + (n - 1) \times d} \\

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Hope it's helps you ☺️

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