the sum of 12 term of AP is 234 and last term is 36.find complete difference and first term?​

1 thought on “the sum of 12 term of AP is 234 and last term is 36.find complete difference and first term?​”

1. [tex]\huge\underline{\overline{\mid\star{\sf{\pink{ANSWER}}\star\mid}}}[/tex]

   S12 = 234

   l = 36

   d= ?

   a=?

   As we know ,

   s12 = 12/2 × (a+36)

   => 234 = 6 (a+36)

   => 234/6 = a +36

   => 39 = a+36

   => a = 39-36 = 3

   so, a= 3

   again ,

   n= 12

   a= 3

   As we know that

   l= 36

   => a+(n-1)d = 36

   =>3+ (12-1)d = 36

   => 11d = 33

   => d = 3

   so, d= 3

   ★ make it brainliest.

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