Math, asked by Chirag4706, 10 months ago

If the 7 times the 7th term of an ap is equals to 11 times its 11th term then find its 18th term

Answers

Answered by tanishakumar65

0

Answer:

0

Step-by-step explanation:

$7*T_{7} =11*T_{11};\\7(a+(7-1)d)=11(a+(11-1)d)\\7a+42d=11a+110d;\\42d-110d=11a-7a;\\-68d=4a;\\a=-17d;\\\\\\T_{18}=a+(18-1)d =-17d+17d =0$

Previous Question

Next Question

Similar questions

English, 5 months ago

How does Mrs Lapidus help Gogol to feel at ease.

English, 5 months ago

(plz type the answer fast) I will mark the brainlist and 5 votes...

English, 5 months ago

Do you feel scared when you are alone? At such times does play games with you? Do you feel funny sensations and hear sounds? This poem describes one such incident. Someone came knocking At my wee, small door; Someone came knocking, I'm sure- sure- sure; I listened I opened, I looked to left and right, But nought there was a stirring In the still dark night; Only the busy beetle Tap tapping in the...

Physics, 10 months ago

If the the diameter of a wire is increased is the length decreased...

Political Science, 10 months ago

Powers given to state pollution control board under water act 1974...

Math, 11 months ago

please help........................

English, 11 months ago

Which of the following options is most correct? A) The class average is between 70 and 85 percent. That's a range of 15%. B) The class average is between 70-85 percent. That's a range of 15 percent. C) The class average is between 70 and 85%. That's a range of 15 percent. D) The class average is between seventy and eighty-five percent. That's a range of fifteen percent...

Social Sciences, 11 months ago

how can we liquefy a gas?