Home
Class 9
MATHS
If x^3+1/(x^3)=110 , then x+1/x=? (a)5 ...

If `x^3+1/(x^3)=110 ,` then `x+1/x=?` (a)5 (b) 10 (c) 15 (d) none of these

Text Solution

AI Generated Solution

To solve the problem, we start with the equation given: \[ x^3 + \frac{1}{x^3} = 110 \] We need to find the value of \( x + \frac{1}{x} \). ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • AREA OF PARALLELOGRAMS AND TRIANGLES

    RD SHARMA|Exercise All Questions|205 Videos

Similar Questions

Explore conceptually related problems

If a (A) x=0 (B) x=1 (C) x=2 (D) None of these.

If x^(3)=(1)/(x^(3))=14, then x-(1)/(x)=5 (b) 4(d)3(d)2

If x+(1)/(x)=5, then x^(2)+(1)/(x^(2))=25 (b) 10 (c) 23 (d) 27

If (x-1)/(x)=3, then the value of 1+(1)/(x^(2)) is (a) 9(b) 10(c)11 (d) None of these

If sin^(-1)x-cos^(-1)x=pi/6 , then x= 1/2 (b) (sqrt(3))/2 (c) -1/2 (d) none of these

If x is real and k=(x^(2)-x+1)/(x^(2)+x+1), then k in[1/3,3] (b) k>=3(c)k<=1/3(d) none of these

IF ax^3+bx^2+cx+d = |(x^2,(x-1)^2, (x-2)^2),((x-1)^2 (x-2)^2, (x-3)^2), (x-2)^2, (x-3)^2, (x-4)^2)| , then d= (A) 1 (B) -8 (C) 0 (D) none of these

If sin^(2)theta=(x^(2)+y^(2)+1)/(2x), then x must be -3 (b) -2(c)1(d) none of these

[" 14.If "f(x)=(1-cos2x)/(x^(2))quad " (b) "x!=0" and "f(x)" is continuous at "x=0" ,then "f(0)=?],[[" (a) "1," (b) "2," (c) "3," (d) None of these "]]

If x^(3)+(1)/(x^(3))=110 then the value of x+(1)/(x) is

Home
Profile