Question
If x 4 – 83x 2 + 1 = 0, then
find the value of x 3 - x -3 can be:Solution
x 4 – 83x 2 + 1 = 0
So, (x 2 + 1/x 2 ) = 83
So, (x – 1/x) = √(83 – 2) = 9
So, x 3 - x -3 = 729 + 3 × 9 = 756
More Algebra Questions
The pH of blood is primarily regulated by:
Which chemical is used to make artificial rain?
What is the product of the reaction?
CH₃COOH + CH₃OH → (H⁺, heat)
A mobile phone charger is
Insulin is secreted by which organ?
Noise is measured in –
The Weight of an object on Earth is 600 N. What will be its weight on moon?
Which of the following is an unsaturated hydrocarbon ?
The sharpness of a television image is termed as its –
NaOH + HC1 -> NaCl + H₂ O in the given chemical reaction
Relevant for Exams:
