-_-

Kuadrat sempurna abab

4 posts in this topic

Adakah bilangan kuadrat sempurna empat angka berbentuk $abab$? Jelaskan.

0

Share this post


Link to post
Share on other sites
4 minutes ago, -_- said:

Adakah bilangan kuadrat sempurna empat angka berbentuk abababab ? Jelaskan.

Tidaak ._.

 

abab = k^2

1000a + 100b + 10a + b = k^2

1010a + 101b = k^2

101(10a + b) = k^2

101 = bilangan prima

10a + b = 101 TM

0

Share this post


Link to post
Share on other sites
Just now, Agita Phasa said:

Tidaak ._.

 

abab = k^2

1000a + 100b + 10a + b = k^2

1010a + 101b = k^2

101(10a + b) = k^2

101 = bilangan prima

10a + b = 101 TM


Argumen terakhir harusnya 101 habis membagi 10a+b sih (tapi yha tetep aja ga mungkin, soalnya 10a+b kan rangenya dari 11-99)

0

Share this post


Link to post
Share on other sites
12 minutes ago, -_- said:


Argumen terakhir harusnya 101 habis membagi 10a+b sih (tapi yha tetep aja ga mungkin, soalnya 10a+b kan rangenya dari 11-99)

Langsung kepikiran 10a + b maksimal bernilai 99, jadi TM hhe

0

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now