Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Z1,Z2, z3 are three pair wise distinct complex numbers and t1, t2, t3, are non-negative real numbers such that t1+ t 2 +t3=1 Prove that the complex number z = t1z1 +t2z2 + t3z3 lies inside a triangle with vertices z1, Z2, z3 or on its boundary.

Z1,Z2, z3 are three pair wise distinct complex numbers and t1, t2, t3, are non-negative real numbers such that t1+ t 2 +t3=1 Prove that the complex number z = t1z1 +t2z2 + t3z3 lies inside a triangle with vertices z1, Z2, z3 or on its boundary.

Question Image
Grade:12th pass

1 Answers

Arun
25763 Points
3 years ago
Dear Saurabh
 
 
We can rewrite as
 
z = t1 (z1-z3) + t2(z2-z3). z1-zand z2-z3 are two of the sides of the triangle. Since t1 and t2 are positive, z will lie in the interior of the region described by the vectors z1-zand z2-z3.
 
In the same way one can see that z lies in the interior of the region formed vectors z1-zand z3-z2 as well as in the interior of that formed by z2-zand z3-z1.
 
Hence z lies in the interior of the triangle formed by z1, z2, and z3.
 
Regards
Arun (askIITians forum expert)

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free