Question

12. Find
√7 + √70 + √121​

Answer 1

Answer:

√7 = 2.6457

√70 = 8.3666

√121 = 11

√7 + √70 + √121​ = 2.6457 + 8.3666 + 11

                            = 22.0123

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Answer 2

Answer:

4

Step-by-step explanation:

$\sqrt[]{7+\sqrt{70+\sqrt{121} } }$

= $\sqrt{7+\sqrt{70+11} }$            ∵[ $\sqrt{121}$ = 11]

= $\sqrt{7+\sqrt{81} }$

= $\sqrt{7+9}$                         ∵[$\sqrt{81}$ = 9]

= $\sqrt{16}$  

= 4 Ans.  

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Hope this will help you :-)