Question

(ii) If for an AP.t2, = 4 and d= -2, then what is the value of a? ​

Answer 1

Answer

a=6

Explanation

t2=4

t1=t2-d

tn={a+(n-1)d]

t1=a

t1=4-(-2)

t1=4+2

t1=6

a=6

Answer 2

Given -

• a₂ = 4

• d = 2

To find - a

Solution-

a₂ = a + ( n - 1 ) d

4 = a + (2 - 1) -2

4 = a - 2

a = 6