Which term of the AP 24 , 21 ,18 ,15 .... is the first negative term ?
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tn = a+(n-1)D
tn =24+(n-1)-3
tn =24-3n+3
aage karlena
Anonymous:
Heya!!
Let that term be x Tx = a + ( x - 1 ) d. Tx = 0 , a = 24 and d = -3. 0 = 24 + ( x - 1 ) -3 x = 8+1 = 9
So, ist negative term is 9th term
i m right or wrong?
Answered by
2
Heya!!
Given A.P is
24 , 21 , 18 , 15 , ......,0 , ist negative term
COMMON THOUGHT
before reaching ist negative term we must pass through 0th term
Let that 0th term be x
Tx = a + ( x - 1 ) d
Tx = 0 , a = 24 and d = -3
0 = 24 + ( x -1 ) × -3
x - 1 = 8
x = 9
So, the ist negative term is x + 1 term.
= 10
Have a nice day ahead.
Given A.P is
24 , 21 , 18 , 15 , ......,0 , ist negative term
COMMON THOUGHT
before reaching ist negative term we must pass through 0th term
Let that 0th term be x
Tx = a + ( x - 1 ) d
Tx = 0 , a = 24 and d = -3
0 = 24 + ( x -1 ) × -3
x - 1 = 8
x = 9
So, the ist negative term is x + 1 term.
= 10
Have a nice day ahead.
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