Question

6. In an AP d = -4 seventh term is 4 a =​

Answer 1

Answer:

step by step ans.

• d= -4, 7th term = 4, n = 7, Tn = 4
• find the first term = a =?
• Tn=a+(n-1)d .....................( formula )
• 4 = a + ( 7- 1 ) ×( -4)
• 4 = a + 6 × (-4)
• 4 = a - 24
• a = (-24) - 4
• a = -28

the first term is -28.

I hope my answer helps you