Question

find the 1st negative term of the A.P 2000,1990,1980,1970.......
step by step explanation
​

Answer 1

Answer:

sorry muja question smj nhi aaya

Answer 2

Answer:

term 202, value -10

Step-by-step explanation:

find the 1st negative term of the A.P 2000,1990,1980,1970.......

As we see,

• 1. the common difference is -10 and
• 2. all terms are multiples of 10

One of the term will get 0 value and the next term after will be -10, so the first negative term is -10.

Lets calculate number of the term with 0 and first negative value:

• a₁=2000
• d=-10
• aₙ=2000+(n-1)d = 2000- 10(n-1) =0 =>
• n-1=200 =>  n=201

So a₂₀₁=0 and the next term a₂₀₂= -10