If \(\sqrt {86 - 60\sqrt 2 } \; = \;a - b\sqrt 2 ,\) then what will b – McqOptions

MCQOPTIONS

1.	If \(\sqrt {86 - 60\sqrt 2 } \; = \;a - b\sqrt 2 ,\) then what will be the value of √(a2 + b2), correct to one decimal place?
A.	7.2
B.	8.2
C.	8.4
D.	7.8
Answer» E.

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