Determine A.P where 5th term is 19 & difference of 8th term from 13th term is 20
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Answered by
1
a5=19
a+4d=19 equation 1
a13-a8=20
a+12d-a-7d=20
5d=20
d=4
putting the value in equation 1
a+14×4=19
a=19-56
a= -37
AP=-37, -33, -29......
hope this answer help you
a+4d=19 equation 1
a13-a8=20
a+12d-a-7d=20
5d=20
d=4
putting the value in equation 1
a+14×4=19
a=19-56
a= -37
AP=-37, -33, -29......
hope this answer help you
Answered by
0
Answer:
Step-by-step explanation:
a5=19
a+4d=19 equation 1
a13-a8=20
a+12d-a-7d=20
5d=20
d=4
putting the value in equation 1
a+4×4=19
a+16=19
a=3
The A.P is: 3,7,11,....
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