Question

What is the value and term for sequence 4, 2, 0, -2, -4

Answer 1

Answer:

Required Answer:-

• a=4
• d=-2
• n=5

${:}\longrightarrow$$\sf S_n=\dfrac {n}{2}}\left [2a +(n-1)d\right]$

${:}\longrightarrow$$\sf {\dfrac {5}{2}}\left [8+(4)(-2)\right]$

${:}\longrightarrow$$\sf 2.5 ×0$

${:}\longrightarrow$$\sf S_n=0$