If 9th term of an ap is zero prove that it's 29 term is double the 19th term
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Answer:
LHS = RHS ==0
Step-by-step explanation:
9th term = 0
a + 8d = 0
a = -8d
thus,
29 th term = 2 ( 19 th term)
a + 28d = 2 ( a+ 18d)
- 8d + 28d = 2( - 8d + 18d)
20d = 2( 10d)
20d = 20d
0 = 0
HENCE PROVED
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