Question

Q2. The missing term in AP: 2.? . 26
12
b)
c)
d) 1​

Answer 1

Answer:

(i) For this A.P.,

a = 2

a3 = 26

We know that, an = a + (n − 1) d

a3 = 2 + (3 - 1) d

26 = 2 + 2d

24 = 2d

d = 12

a2 = 2 + (2 - 1) 12

= 14

Therefore, 14 is the missing term.

Answer 2

T1=2

T3 =26

we known that , Tn=a +(n-1) d

T3= 2+(3-1)d

26 = 2+2d { T3=26}

26-2= 2d

24=2d

d= 12

T2= 2+(2-1)12

=14

Therefore, 14 is the missing term.

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