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If sqrt(86-60sqrt2)=a-b sqrt2, then what...

If `sqrt(86-60sqrt2)=a-b sqrt2`, then what will be the value of `sqrt(a^2+b^2)`, correct to one decimal place ?
यदि `sqrt(86-60sqrt2)=a-b sqrt2` है, तो एक दशमलव स्थान तक `sqrt(a^2+b^2)` का मान ज्ञात करें |

A

`8.4`

B

`8.2`

C

`7.8`

D

`7.2`

Text Solution

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The correct Answer is:
C
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