if for AP if a=-59 and a10-a5=50,then a15 is
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Step-by-step explanation:
a=-59
a 10=a+9 d
a 5=a+4 d
a+9 d-a-4 d=50
5 d=50
d=10
a 15=a+14 d
a 15=-59+140
a 15= 81
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