A-Level Maths: G3-18 Gradients: Examples of Convex & Concave Curves

[chris]

for the last bit of the last question when do we know to complete the square or just factorise

[thelogicalvoice-shorts]

Nice video man! Is it actually possible to get a question as long as the last one?

[lorettakurtz]

thanks sir this is super helpful. Finally understand this concept and the last question was also good review of quotient rule, product rule and chain rule.😃

[musejames]

90% of this makes sense but the factoring out of the e^x throws me off :( someone please try and explain

[lunaxzo]

Is there another way to determine where the parabola is above the x axis without having to draw it?