Find next three terms $- 1.2, - 3.2, - 5.2, - 7.2, . . . .$

Open in App

Solution

$- 1, 2, - 3.2, - 5.2, - 7.2 - - -$

$\Rightarrow$ $a_{2} - a_{1} = - 3.2 - (- 1.2)$

$= - 2$

$\Rightarrow$ $a_{3} - a_{2} = - 5.2 - (- 3.2)$

$∴ d = - 2$

$∴ a_{5} = a + 4 d$

$= - 1.2 + 4 \times - 2 = - 9.2$

$a_{6} = a + 5 d$

$= - 1.2 + 5 \times - 2 = - 11.2$

$\Rightarrow$ $a_{7} = a + 6 d$

$= - 1.2 + 6 \times - 2 = - 13.2$

$∴$ Next $3$ terms : $- 9.2, - 11.2, - 13.2$

Suggest Corrections

Similar questions

Is the following sequence an

A P

? If true, find the common difference

d

and write three more terms.

- 1.2, - 3.2, - 5.2, - 7.2...

Q. Check whether given series is

A P s

? If they form an

A P

, find the common difference

d

and write three more terms.

- 1.2, - 3.2, - 5.2, - 7.2, . . . .

Question 4 (iii)
Which of the following are APs? If they form an A.P. find the common difference d and write three more terms.
(iii) -1.2, -3.2, -5.2, -7.2 …

Question 4 (iii)
Which of the following are APs? If they form an A.P. find the common difference d and write three more terms.
(iii) -1.2, -3.2, -5.2, -7.2 …

Q. Find the sum to n terms of

3.2 + {5.2}^{2} + {7.2}^{3} + . . .

Join BYJU'S Learning Program

Find next three terms −1.2,−3.2,−5.2,−7.2,....

−1,2,−3.2,−5.2,−7.2−−−⇒a2−a1=−3.2−(−1.2)=−2⇒a3−a2=−5.2−(−3.2)∴ d=−2∴ a5=a+4d=−1.2+4×−2=−9.2a6=a+5d=−1.2+5×−2=−11.2⇒a7=a+6d=−1.2+6×−2=−13.2∴ Next 3 terms : −9.2,−11.2,−13.2

Find next three terms $- 1.2, - 3.2, - 5.2, - 7.2, . . . .$