36.
$${\left( 6 \right)^4} \div {\left( {36} \right)^3} \times 216 = {6^{\left( {? - 5} \right)}}$$

37.
The value of $${\left( {256} \right)^{\frac{5}{4}}}$$  is = ?

38.
$$\sqrt {2 + \sqrt {2 + \sqrt {2 + ......} } } $$      is equal to ?

39.
The value of $${\text{2}} + \sqrt {0.09} \, - \,\root 3 \of {0.008} \, - \,75\% $$       of 2.80 is = ?

40.
The value of $${\left( {3 + 2\sqrt 2 } \right)^{ - 3}}$$   $$ + {\left( {3 - 2\sqrt 2 } \right)^{ - 3}} = ?$$

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