MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 12th pass
        
Please solve the below problem:
If y=x^1/3-x^-1/3, then y^3+3y=?
18 days ago

Answers : (1)

Snehal Jadhav
54 Points
							
We are given that:
y=x1/3 – x-1/3
 
The expression asked to solve can be rearranged into:
y2 (y + 3)
 
So, first we will evaluate the value of y2:
Therefore, by squaring on both the sides we get:
 
y2 = (x1/3 – x-1/3)2
    = x2/3 + x-2/3 – 2
 
Now, by inserting the value we get:
= y (x2/3 + x-2/3 – 2 + 3)
= (x1/3 – x-1/3 )(x2/3 + x-2/3 + 1)
= x + x-1/3 + x1/3 –  x1/3 – 1/x –  x-1/3
 
By, cancelling terms we get our final expression:
= x – 1/x
18 days ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Get Extra Rs. 1,590 off

COUPON CODE: SELF10


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Get Extra Rs. 233 off

COUPON CODE: SELF10

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details