Show that the points representing the complex numbers 7+9i, -3+7i and 3+3i form a right angled triangle on the Argand diagram.

Kindly show step by step.

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- January 24th 2010, 11:37 AMSalman91Argand diagram
Show that the points representing the complex numbers 7+9i, -3+7i and 3+3i form a right angled triangle on the Argand diagram.

Kindly show step by step.

- January 24th 2010, 11:51 AMpickslides
There are a few different ways of tackling this problem, what method are you expected to use?

- January 24th 2010, 03:37 PMmr fantastic
Plot the points, join the dots, get the distances beteen the dots, apply Pythagoras' Theorem.

And a salient thread: http://www.mathhelpforum.com/math-he...-triangle.html. - January 24th 2010, 11:10 PMJhevon
Mr F's suggestion already covered this, but you and

**asnali**seem to ask the same questions. i want to link them. see here