solve this for 35 points
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Step-by-step explanation:
15)4/√11-√7*√11+√7/√11+√7
4(√11+√7)/4
=√11+√7
17)a=√2-1
(a-1/a)^3
1/a=1/√2-1*√2+1/√2+1=√2+1
a-1/a=√2-1-√2-1
(a-1/a)=-2
(a-1/a)^3=(-2)^3=-8
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Step-by-step explanation:
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Anonymous:
hi
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