Question

Given
a = -3,
d - 4
find
t4​

Answer 1

Answer:

a = first term = t1 = -3

d = common difference = 4 (positive)

Step-by-step explanation:

formula : Tn = a + ( n-1 ) × d

T4 = (-3) + (4-1) × 4

= (-3) + (3) × 4

= (-3) + 12

= 9

another possibility is (-4)

therefore T4 = (-3) + (4-1) × (-4)

= (-3) + (3) × (-4)

= (-3) + (-12)

= -3-12

= -15

THE REQUIRED ANSWERS :

FOR POSITIVE 4 = 9

FOR NEGATIVE 4 = -15