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If a1=1a _ { 1 } = 1 And an+1=1+ana _ { n + 1 } = \sqrt { 1 + a _ { n } }

Question 282

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If a1=1a _ { 1 } = 1 and an+1=1+ana _ { n + 1 } = \sqrt { 1 + a _ { n } } for n1n \geq 1 and limnan=L\lim _ { n \rightarrow \infty } a _ { n } = L is assumed to exist, then what must LL be?


A) 2\sqrt { 2 }
B) 3\sqrt { 3 }
C) 5\sqrt { 5 }
D) 7\sqrt { 7 }
E) 1+22\frac { 1 + \sqrt { 2 } } { 2 }
F) 2+34\frac { 2 + \sqrt { 3 } } { 4 }
G) 1+52\frac { 1 + \sqrt { 5 } } { 2 }
H) 3+72\frac { 3 + \sqrt { 7 } } { 2 }

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