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Question

1. 1/(x+h) - 1/x

2. 2/(x^2)/10/(x^5)

3. (1/3+x - 1/3)/x

4. square root of x/x

5. e^(1+ln(x))

Answer 1

1. 1/(x+h) - 1/x
= [x-(x+h)]/[x(x+h)]
= h/(x(x+h))

2. 2/(x^2)/10/(x^5)
= 2/x^2 * x^5/10
= x^3/5

3. (1/3+x - 1/3)/x
= x/x = 1

4. square root of x/x
sqrt(1) = +/- 1

5. e^(1+ln(x))
= e^1*e^ln(x)
= ex