area of region (1 Viewer)

[bleakarcher]

If you solve (pi/4)+x=2pi you get 7pi/4 not 3pi/4 (PS sorry for annoying you for so long)

 

[bleakarcher]

I just really want to get this through my mind.

 

[bleakarcher]

Very confused right now. Going to sleep.

 

[Carrotsticks]

math man,

You seriously need a tablet.

Kind regards,

My eyes.

Edit: and my neatness OCD.

 

[SpiralFlex]

The Brain already has laptops.

 

[Carrotsticks]

The Brain already has laptops.

*graphics tablet, not iPad tablet.

 

[SpiralFlex]

*graphics tablet, not iPad tablet.

But they are so expensive.

 

[Carrotsticks]

But they are so expensive.

Not quite: http://www.ebay.com.au/itm/WACOM-Ba...eripherals&hash=item484256a8ad#ht_7547wt_1037

Think about it as an investment.

Regarding OP's question, I'll try to do it in detail tomorrow (today) with explanations to clear up any questions.

 

[math man]

Nah I love paint

 

[SpiralFlex]

@You guys

Up at 1:08 AM doing maths on Valentines Day....

 

[Carrotsticks]

@You guys

Up at 1:08 AM doing maths on Valentines Day....

 

[math man]

Math has various limits,
Obviously we are infinite limits
That work at all hours

 

[SpiralFlex]

The closest I can ever get to love. (Human emotions)

 

[math man]

I just really want to get this through my mind.

The reasoning is not so striaght forward but bear with me. Now arg(z-5i)=-theta and arg(z+5i) = phi. subbing this into locus gives phi + theta = pi/4. however this
statement is only true in the sense of subtracting the arguments of the vectors. Whereas in plane geometry it is obvious that both phi and theta are obtuse so adding them
together will become a reflex angle so you add 180 to pi/4 which gives 5pi/4 and then you subtract this from 2pi which gives the desired angle of 3pi/4. If you dont get this
then im sorry, but yeh dw most complex locus questions of this form are not as complicated as i am putting it. Basically if the vectors are subtended from the y-axis then
if the locus is in form arg[(z-z1)(z-z2)]= theta, then the angle between the vectors will be (theta + pi/2) and i don't think you have to prove it every time unless they ask you to

 

[kingkong123]

so what's the answer to OP's question ? :S

 

[Carrotsticks]

so what's the answer to OP's question ? :S

I got 25(3pi + 2)

 

[kingkong123]

I got 25(3pi + 2)

can you explain the flaw in my reasoning mr carrotsticks?

i got ??? if the argument is then it will be of a circle, but because its there will be 2 three quarter circles of radius 5. so i just did

 

[Carrotsticks]

can you explain the flaw in my reasoning mr carrotsticks?

Check your PM.