Answer:
-128
Explanation:
b(1)=−54
b(n)= b(n−1) x 4/3
b2 = b1 * 4/3 = -54* 4/3 =-72
b3 = b2 *4/3 = -72 *4/3 =-96
b4 = b3 *4/3 =-96*4/3 = -128
The 4th term is -128
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