Math, asked by alpana2002, 1 year ago

solve que 15
send ans fast

Attachments:

rajeshkumar437: I don't know

alpana2002: ok

Answers

Answered by kishanpentyala

$sum \: of \: first \: 10 \: terms = - 150 \\ = a + 9d \\ sum \: of \: first \: 20 \: terms = a + 19d \\ = - 150 - 550 = - 700 \\ by \: solving \: both \: eqns \: we \: get \\ d = - 55 \: \: \: and \: \: \: a = 345 \\ so \: a.p \: is \: 345 \: \: 295 \: .....$

Previous Question

Next Question

Similar questions

Math, 9 months ago

WHAT IS THE BEST SOLUTION FOR x+1) x³+5x²+2x+16(...

Science, 9 months ago

5. Which of the following is not a plant product? a. Oil b. Spice C. Tyre d. Milk Class 4th A Please send me fast Uncessary message I will Reported...

English, 9 months ago

Man is basically / animal. The instinct of fighting is a. _________...

Psychology, 1 year ago

(let's see your mental ability) What is it if once gone up never comes back down to earth? Hint :- It is something related to you only...

Biology, 1 year ago