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Kisachek [45]
2 years ago
6

40 points urgent really need answer

Mathematics
1 answer:
Kipish [7]2 years ago
6 0

a_1=1\\a_2=1+4=5\\a_3=5+2\cdot4=5+8=13\\a_4=13+3\cdot4=13+12=25\\a_5=25+4\cdot4=25+16=41\\a_6=41+5\cdot4=41+20=61

Answer: d. 25 + 16 = 41

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