Advertisements
Advertisements
Question
Find the square of `"x"+1/"x"-1`
Sum
Advertisements
Solution
`("x"+1/"x"-1)^2=("x")^2+(1/"x")^2+(-1)^2+2xx"x"xx1/ "x"+2xx1/"x"xx(-1)+2(-1)xx"x"`
`="x"^2+1/"x"^2+1+2-2/"x"-2"x"`
`="x"^2+1/"x"^2+3-2/"x"-2"x"`
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Expand : (2a + b)2
Expand : (a – 2b)2
Find the square of 3a − 2b − 5c
Find the square of `2"x"+1/"x"+1`
Find the square of 2x − 3y + z
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(92)2
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(188)2
Write the place value of the underlined digit.
50,000
Write the following numbers in standard notation.
200000 + 7000 + 7
Write in expanded form:
74836
