tolong bantu kerjain kak
Jawaban:
• no 8
AB = 13²- 5²
AB = 169 - 25
AB = 144
AB = 12²
• no 2
beda nya 2
U⁴ = a + ( 4 - 1 ) b =21
= a + 3b = 21
U¹⁰ = a + ( 10 - 1 ) b = 33
= a + 9b = 33
mencari nilai b (bedanya)
a + 3 b = 21
a + 9 b = 33
__________-
-6b = -12
b = -12/-6
b = 2✓
suku pertama nya
a + 3b = 21
a + 3 (2) = 21
a + 6 = 21
a = 21 - 6
a = 15✓
maaf cuma itu yang sya tau^_^
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