Given a₁ = 3 and d=7 i find A12 = ?
Answer (1)
Answer:a12=80Step-by-step explanation:given:a1=3 a12=? d=7solution: an=a1+(n-1)da12=3+(12-1)7a12=3+(11)7a12=3+77a12=80
Answer:a12=80Step-by-step explanation:given:a1=3 a12=? d=7solution: an=a1+(n-1)da12=3+(12-1)7a12=3+(11)7a12=3+77a12=80
