Tagged Questions

3
votes
2answers
53 views

What is the maximum value of P = x^2 + xy - y^2

Given that x + y = 1, the maximum value of P = x2 + xy - y2 occurs for x when?
1
vote
2answers
65 views

How do I differentiate the function y=2x^2?

How do I differentiate the function y=2x^2?
2
votes
2answers
118 views

Derivative of x^n?

What is the derivative of xn, where n is some natural number (1, 2, 3, ...)? Thanks.
2
votes
1answer
39 views

What’s the equation of the tangent to the curve y=2log_e(x) at (1,0)?

How does one find the equation of the tangent to the curve at y=2loge(x) at (1,0)? Cheers.