solve this first second and third
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if d is same then it is AP
20th term=a+19d
2. 24th term=a+23d
a=12
d=4
#@p
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a = 12 d= 4
a24 = a + 23d
= 12 + 23×4
= 104
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Dang132:
how do you get difference d= 4
and a = - 12
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