Posted by **Kevin** on Thursday, February 28, 2013 at 6:56pm.

Find the dy/dx for each of the following

1)y=ln(2x^6-15)

2)y= 3√ 2x^2-3x-1/5

3) y= x^4/x^2+1

- Math -
**Reiny**, Thursday, February 28, 2013 at 9:44pm
1. dy/dx = 12x^5 /(2x^6 - 15) ---- routine

2. dy/dx = 6√2 x - 3 ---- routine

3. the way you typed it,

y = x^4/x^2 + 1

y = x^2 + 1

dy/dx = 2x

if you meant x^4/(x^2+ 1) , then you would use the quotient rule. See how critical it is to use brackets ?

- Math -
**Kevin**, Thursday, February 28, 2013 at 10:16pm
there is no brackets for question 3. Although i am still confused. would you be able to give step by step solutions?

## Answer This Question

## Related Questions

- Math - Find an equation of the line that bisects the obtuse angles formed by the...
- 8th grade algebra - Can you check my answers? 1. 3√20/√4 = 3√(...
- Math help Ms. Sue please - 1. What is the simplified form of the expression? 7m^...
- Math - Use a sum or difference identity to find the exact value of sin225° a...
- Algebra - How would i complete these problems? 1. (√6mn)^5 2. ^3√16x...
- maths - I will be thankfull to you if you help me to solve the below problem: 6...
- Math - Determine the exact value of cos 465 degrees a) √3 + √2/2 b...
- Algebra Work Check - 1. 5√6 * 1/6√216 5/6 * √1296 5/6 * √...
- algebra 1 help - simplifying square roots 1) find volume of this prism? v=bwh b...
- math - If x is greater than or equal to 100, then √x+16 (the whole thing ...

More Related Questions