Number of images

[gaunt hornet]

Can someone explain what just happened here

[hexed onyx]

<@&1227987967939838003>

Note for OP

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[bold plume]

Do you need explanation of result n-1, n how we got no. Of inages

Take 2 scenerio one 360/theta=n , n is even and one n is odd

In case of even there are n-1 sectors other than mirror sector and each sector contains 1 image try to observe by diagram . And for n=even there is a sector right opposite to mirror sector and it will contain 2 coincidence images not able to get 2 different images thats why for n even no. Of images =n-1

For odd you need to make 2 cases one when object is on angle bisector of mirro and one when not on angle bisector

For odd n lets say these are 3 sectors one of mirro and 2 opposite of it i drawn bisectors of all

Try to observe that for O on angle bisector only n-1 images forms as for more images light can't reflect again as angle>180

For not on angle bisector there will be one more image extra formed try to see it

[gaunt hornet]

Uhh to much math I don't understand 😭

[bold plume]

Not much maths but bit visualization try to draw diagram for different scenarios

Try to pur bit effort to think . The effort would make you not forget it

Otherwise just remember proof not necessary

[gaunt hornet]

It's the bisector thing I don't understand