Math, asked by hgfyduhbhj2685, 1 year ago

Which term of the progression is 19, 18 1 by 5,17 2 by 5, so on is the first negative term

Answers

Answered by orambedi237
1

Answer:


Step-by-step explanation:

rithmetic series with

a = 19

d = -4/5

a + (n-1)d < 0

19 + (n-1)(-4/5) < 0

19 - (4/5)n + 4/5 < 0

times 5

95 - 4n + 4 < 0

-4n < -99

n > 99/4

n > 24.75

so it must be term(25) which is the first one negative.

check:

term(25) = 19 + 24(-4/5) = -1/5

term(24) = 19 + 23(-4/5) = 3/5

OK

Answered by sanket12sawant
0

Answer:

Step-by-step explanation:

if 9th term

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