Proof inequality q (1 Viewer)

[Run hard@thehsc]

I investigated this question and worked backwards to front, but I am not sure if this is right - could you guys check it pls!!!

 

[5uckerberg]

Okay, @Run hard@thehsc can you show us how you answered this question? We might be of help.

 

[5uckerberg]

Okay, in that case, we will start. and then the next step . This is done by expanding and bringing the square root term on the other side.

Well, here we can let .
After subbing the values of x and y we will have .
Further simplifications lead us to .
Now bon appetit

 

[=)(=]

Okay, in that case, we will start. and then the next step . This is done by expanding and bringing the square root term on the other side.

Well, here we can let .
After subbing the values of x and y we will have .
Further simplifications lead us to .
Now bon appetit

A bit lost as to how you got the rhs of the inequality in this line as i cant see how you subsituted x=a+b/2 and y=c+d/2?

 

[5uckerberg]

Well simply put recall that and with these two replace the x and y with them.

 

[=)(=]

Well simply put recall that and with these two replace the x and y with them.

Got it thank you

 

[Run hard@thehsc]

@5uckerberg sos for the late reply - but it makes sense...thank you!