If a + b√7 =
3/
√7+2
, find a and b.
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1
Answer:
a+b√7=3/2+√7
3(2-√7)/(2+√7)*(2-√7)
=3(2-√7)/(4-7)
=3(2-√7)/(-3)
=-2+√7
comparing
a= -2
b=1
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