a)
[tex] \sqrt{5 + \sqrt{4} } = \sqrt{5 + 2} = \sqrt{7} [/tex]
b)
[tex] \sqrt{11 + \sqrt{25} } = \sqrt{11 + 5} = \sqrt{16} = 4[/tex]
c)
[tex] \sqrt[3]{11 - \sqrt{9} } = \sqrt[3]{11 - 3} = \sqrt[3]{8} = 2[/tex]
d)
[tex] \sqrt{7 + 2 \sqrt{25} - \sqrt{16} } = \sqrt{7 + 10 - 4 } = \sqrt{13} [/tex]
d)
[tex] \sqrt[3]{ - 3( \sqrt{121} + 5 \times \sqrt[4]{16}) - 1} = \sqrt[3]{ - 3(11 + 10) - 1} = \sqrt[3]{ - 63 - 1} = \sqrt[3]{ - 64} = - 4[/tex]
