If a b +b a =1(a, b 0), then a^3+b^3= - Vidyadip

MCQ

If $\frac{a}{b}+\frac{b}{a}=1(a, b \quad 0)$, then $a^3+b^3=$

✓
0
B
1
C
2
D
8

✓

Answer

Correct option: A.

0

A

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Expansions→Expansions — all question types→MATHEMATICS STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

Assertion (A) : One of the factors of $(5 x+1)^2+\left(25 x^2-1\right)$ is $2 x$.
Reason (R) : $(a+b)^2=(a+b)(a+b)$
$a^2-b^2=(a+b)(a-b)$

The compound interest on ₹8,640 for 3 years at 8% p.a. is:

Which of the following is a rational number?

If $l+m-n=9$ and $l^2+m^2+n^2=31$, then the value of $m n+n l-l m$ is :

$D , E$ and F are respectively the mid-points of the sides $BC , CA$ and AB of a ABC . If $BC =10 cm, CA =12 cm$ and $AB =17 cm$, then the perimeter of the DEF is :

There is a road of equal width all around a circular garden. The outer and inner circumferences of the road are 328 m and 200 m respectively. The area of the road will be :

Five years ago, Bharat was thrice as old as Rajat. Ten years later, Bharat will be twice as old as Rajat. The difference between their present ages is :

The base of a cuboid is a square and its height is 4 cm . If the volume of the cuboid is $200 cm^3$, then the length of the base is :

A man deposits ₹ 10,000 in a cooperative bank for 3 years at 9% p.a. If interest is compounded annually, then the amount he will get from the bank after 3 years is:

Factorization of $p^2-2 p-(q+1)(q-1)$ is :