if the 7th term of an ap is 0 prove that its 27th term is 5vtimes its 11th term
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Hope this will help u
Step-by-step explanation:
a7=0
a+6d=0
a =-6d
a27=5(a11)
a+26d=5(a+10d)
a+26d=5a+50d
-6d +26d = 5(-6d) +50d
26d= -30d +50d
26d= 20d
26d-20d =0
6d=0
d=0
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