U3=16
U5=20
.
a+(n-1)b - a+(n-1)b=20-16
(5-1)b-(3-1)b=20-16
4b-2b=20-16
2b=4
b=2
U3=a+(3-1)2
16=a+(2)2
16=a+4
a=12
U8=12+(8-1)2
U8=12+14
U8=26
Semoga bermanfaat
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Verified answer
Jawaban:
U3=16
U5=20
.
a+(n-1)b - a+(n-1)b=20-16
(5-1)b-(3-1)b=20-16
4b-2b=20-16
2b=4
b=2
.
U3=a+(3-1)2
16=a+(2)2
16=a+4
a=12
.
U8=12+(8-1)2
U8=12+14
U8=26
Semoga bermanfaat