Grade 12th passAlgebra
a=(/3+/2)^-3b=(/3-/2)^-3Then(a+1)^-1 + (b+1)^-1 =?
1 Answer
SOVON SARKAR
Let /3-/2=x. Therefore /3+/2=1/x
Now a=x^3 and b=1/x^3. a+1=x^3+1........(1)
Now b+1=1/x^3 + 1=(x^3+1)/x^3=(a+1)/x^3 [using (1)]
Therefore 1/(b+1)=x^3/(a+1)
Now 1/(a+1) + 1/(b+1) = 1/(a+1)+x^3/(a+1)=(x^3+1)/(a+1)=(a+1)/(a+1)=1 [using (1)]
Other Related Questions on algebra
How do you write “the product of 18 and q” as an algebraic expression?
How do you write “the product of 18 and q” as an algebraic expression?
algebra
Last Activity: 2 Years ago