Question

16) Find first four terms of an A.P.,
whose first term is - 2 and common
difference is - 2.
O - 2,0,2,4
O -2,4,- 8,16
0 -2,-4, -6, - 8
O -2,-4,-8, -16​

Answer 1

Step-by-step explanation:

0 -2,-4, -6, - 8

am I right?????

Answer 2

Question:-

Find the first four terms of an A.P whose first term is -2 and common difference is -2.

Answer:-

• -2 ; -4 ; -6 ; -8

Solution:-

Given,

a = -2 ; d = -2

➣ tn = a + ( n - 1 ) d

➣ t 2 = -2 + (2 - 1) -2

➣ t 2 = - 2 - 2

➣ t 2 = -4

Now,

3rd term

➣ tn = a + ( n - 1 ) d

➣ t 3 = -2 + ( 3 - 1 ) -2

➣ t 3 = - 2 - 4

➣ t 3 = -6

Now,

4th term

➣ tn = a + ( n - 1 ) d

➣ t 4 = -2 + ( 4 - 1 ) -2

➣ t 4 = -2 - 6

➣ t 4 = -8

»»» First term = -2

»»» Second term = -4

»»» Third term = -6

»»» Fourth term = -8