use geo formula
n-k √ an
r= √ ak
ak= 4
n= 5
an= -972
r=
k=1
SOLUTION:
r= ⁵-¹ √-972/4
r=⁴√-972/4
(divide -972 to 4)
r= ⁴√-243
(find the 4th root of -243)
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Verified answer
use geo formula
n-k √ an
r= √ ak
ak= 4
n= 5
an= -972
r=
k=1
SOLUTION:
r= ⁵-¹ √-972/4
r=⁴√-972/4
(divide -972 to 4)
r= ⁴√-243
(find the 4th root of -243)