Question

first term=15, common different=-3 . not other Comments post it.
step by step also post it the equation also
don't be a straight answer​

Answer 1

Step-by-step explanation:

An arithmetic sequence is a sequence that has the property that the difference between any two consecutive terms is a constant. This constant is called the common difference. If a1 is the first term of an arithmetic sequence and d is the common difference, the sequence will be: {an}={a1,a1+d,a1+2d,a1+3d,…}

Answer 2

$\red{ \qquad \underline{ \pmb{{ \mathbb{ \maltese  \:  CORRECT \: \: QUESTION \:   \maltese }}}}}$

Write an A.P whose first term is a =15 and common difference is d

$\huge\boxed{\fcolorbox{red}{ink}{SOLUTION:}}$

$\huge\boxed{\fcolorbox{purple}{ink}{GIVEN:}}$

$Fist \: term = a=t1 =15 \\d= -3$

$t2 = t1 + d = 15 + ( - 3)$

$= 15 - 3 = 12$

$t3 = t2 + d = 12 + ( - 3)$

$= 12 - 3 = 9$

$t4 = t3 + d = 9 + ( - 3)$

$= 9 - 3 = 6$

Therefore,

15,12,9,6 is required AP

$\huge\boxed{\dag\sf\red{Thanks}\dag}$