Question

28. Calcule:


$a)\sqrt{ \frac{16}{49} }$


$b) - \sqrt{\frac{1}{4} }$


$c) \sqrt{ \frac{81}{100} }$


$d) - \sqrt{ \frac{25}{64} }$


$e) \sqrt{ \frac{144}{169} }$


$f) - \sqrt{ \frac{9}{121} }$

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Answer 1

ᴏʟᴀ⏩

⤵⤵⤵⤵

ʟᴇᴛʀᴀ ᴀ):

$\sqrt{ \frac{16}{49} } = \frac{4}{7}$

ꜰᴏʀᴍᴜʟᴀʀɪᴏ ᴀʟᴛᴇʀɴᴀᴛɪᴠᴏ:

0,571428

ʟᴇᴛʀᴀ ʙ):

$- \sqrt{ \frac{1}{4} } = - \frac{1}{2}$

ꜰᴏʀᴍᴜʟᴀʀɪᴏ ᴀʟᴛᴇʀɴᴀᴛɪᴠᴏ:

-0,5,-2

ʟᴇᴛʀᴀ ᴄ):

$\sqrt{ \frac{81}{100} } = \frac{9}{10}$

ꜰᴏʀᴍᴜʟᴀʀɪᴏ ᴀʟᴛᴇʀɴᴀᴛɪᴠᴏ:

0,9

ʟᴇᴛʀᴀ ᴅ):

$- \sqrt{ \frac{25}{64} } = - \frac{5}{8}$

ꜰᴏʀᴍᴜʟᴀʀɪᴏ ᴀʟᴛᴇʀɴᴀᴛɪᴠᴏ:

0,625

ʟᴇᴛʀᴀ ᴇ):

$\sqrt{ \frac{144}{169} } = \frac{12}{13}$

ꜰᴏʀᴍᴜʟᴀʀɪᴏ ᴀʟᴛᴇʀɴᴀᴛɪᴠᴏ:

0,923076

ʟᴇᴛʀᴀ ꜰ):

$- \sqrt{ \frac{9}{121} } = - \frac{3}{11}$

ꜰᴏʀᴍᴜʟᴀʀɪᴏ ᴀʟᴛᴇʀɴᴀᴛɪᴠᴏ:

0,27

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