Question

ɪғ
$x + \sqrt{ {x }^{2} +1 } = a \: \: find \: value \: of \: x$
ᴀ) 1/2(a+1/a)
ʙ) 1/2(a-1/a)
ᴄ) a+a^-1
ᴅ) ɴᴏɴᴇ ᴏғ ᴛʜᴇsᴇ

ᴅᴏɴ'ᴛ sᴘᴀᴍ ​​

Answer 1

Answer:

a

Step-by-step explanation:

please mark as brainly

Answer 2

Hey there !!

option b) is the correct option

Solution refer to the attachment