The first term, a of an A.P is equal to 1½ times the common difference d. Express in terms of d, the 10th term of the A.P.?
KELANINMONEY
13 Apr, 2024
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Robert01
2 years ago
a= 1½d= 3d/2
Tn= a + (n - 1)d
T10= (3d/2) + (10 - 1)d
= (3d/2) + 9d
LCM= 2
= (3d + 18d)/2
= 21d/2
= 10½d
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