Question

$\huge{ \boxed{ \bold \red{ \lim_{ x\to \pi}\cos \: x}}}$






❖ᴏɴʟʏ ᴘʀᴏᴘᴇʀ ꜱᴏʟᴠᴇᴅ ᴀɴꜱᴡᴇʀ ᴡɪᴛʜ ɢᴏᴏᴅ ᴇxᴘʟᴀɴᴀɪᴏɴ ɴᴇᴇᴅᴇᴅ
❖ ɴᴏ ꜱᴘᴀᴍᴍɪɴɢ
❖ᴏɴʟʏ ꜰᴏʀ ᴍᴏᴅᴇʀᴀᴛᴏʀꜱ, ʙʀᴀɪɴʟʏ ꜱᴛᴀʀꜱ ᴀɴᴅ ᴏᴛʜᴇʀ ʙᴇꜱᴛ ᴜꜱᴇʀꜱ​​​

Answer 1

${ \boxed{ \bold \red{ \lim_{ x\to \pi}\cos \: x}}}$

Substitute the variable with the value:

${{ \boxed{ \bold \red{ \lim_{ x\to \pi}\cos (x)} = (- 1)}}}$

Therefore

${{ \boxed{ \bold \red{ \lim_{ x\to \pi}\cos (x)} = - 1}}}$

Answer 2

EVALUTION★

• $\huge{ \boxed{ \bold \red{ \lim_{ x\to \pi}\cos \: x}}}$

• Now put lim value

• $= \cos(\pi)$
• we know that

• $\pi \: value \: angle \: 180$

• $= \cos(180) \\ \\ \\ can \: we \: be \: written \: as \\ \\ \\ = \cos(90 + 90)$

• we know that cos (90+∅) second quardent cos value negative 90 change cos→ sin

• -sin∅

• $= - \sin(90) \\ \\ \\ we \: know \: that \: \sin(90) = 1 \\ \\ \\ = - ( 1) \\ \\ = - 1$
• ________________________________

I hope it helps you