a^2-2a+1 =0 find the value of a^15 +1/a^15
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a²-2a+1 = 0
a²-a-a+1 = 0
a(a-1)-1(a-1) = 0
(a-1)(a-1) = 0
a = 1
a^15 = 1, 1/a^15 = 1/1 = 1
a^15 + 1/a^15 = 1 + 1 = 2
a²-a-a+1 = 0
a(a-1)-1(a-1) = 0
(a-1)(a-1) = 0
a = 1
a^15 = 1, 1/a^15 = 1/1 = 1
a^15 + 1/a^15 = 1 + 1 = 2
Nilushaw:
thanku so much for solving
no prob
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