If x+1/x=3 then xsquare+1/xsquare and x power 4+1/x power4
Answers
Answered by
36
Gɪᴠᴇɴ :-
Tᴏ Fɪɴᴅ :-
Sᴏʟᴜᴛɪᴏɴ :-
●Let's do squaring on both sides for given equation.
Using the formula,
___________________
Let's do squaring on both sides for what we got the value of x²+1/x² = 7
_________________
Lᴇᴀʀɴ Mᴏʀᴇ :-
⇢( a +b )² = a² + 2ab + b²
⇢( a - b )² = a² + b² - 2ab
⇢( a + b )² + ( a - b)² = 2a² + 2b²
⇢( a + b )² - ( a - b)² = 4ab
⇢( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ca
⇢a² + b² = ( a + b)² - 2ab
⇢(a + b )³ = a³ + b³ + 3ab ( a + b)
⇢( a - b)³ = a³ - b³ - 3ab ( a - b)
⇢If a + b + c = 0 then a³ + b³ + c³ = 3abc.
Similar questions