Question
The sum of 5th term and 24th term is 50
Find the sum of first term and 28th term.
Also find sum of 28th term of this sequence?
Find the sum of first term and 28th term.
Also find sum of 28th term of this sequence?
Answers
Steve
T5 + T24 = 50
a+4d + a+23d = 50
a + a+4d+23d = 50
a + a+27d = 50
T1 + T28 = 50
a+4d + a+23d = 50
a + a+4d+23d = 50
a + a+27d = 50
T1 + T28 = 50
Reiny
I assume you are dealing with an AS
a+4d + a+23d = 50
2a + 27d = 50
sum of first and 28th
= a + a+27d
= 2a + 27d
= 50
28th term = a + 27d
= 50 - a
a+4d + a+23d = 50
2a + 27d = 50
sum of first and 28th
= a + a+27d
= 2a + 27d
= 50
28th term = a + 27d
= 50 - a
ENE DORIS OYIHOMA
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