Triangle Inequality

IMPORTANT

Triangle Inequality: Overview

This topic covers concepts, such as, Triangular Inequalities for Sum of Two Sides in Complex Plane & Triangular Inequalities for Difference of Two Sides in Complex Plane etc.

Important Questions on Triangle Inequality

MEDIUM
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If z-6z=2, find the maximum value of |z|, where z is a complex number.

HARD
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For all complex numbers z1, z2 satisfying, z1=12 and z2-3-4 i=5; find the minimum value of z1-z2

HARD
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Find the greatest value of z when z-6z=2, z being a complex number.

HARD
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Find the last value of z+1z if z3

HARD
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Let z, w be two complex numbers such that z=1 and w-1w+1=z-1z+12. Then maximum value of w+1 is

MEDIUM
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Show that for any triangle with sides a, b, c 3(ab+bc+ca)(a+b+c)24(ab+bc+ca).

MEDIUM
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The set of all real numbers a such that a2+2a, 2a+3 and a2+3a+8 are the sides of a triangle is given by a>_____

MEDIUM
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The maximum value of |z|, if z2-3=3z, is

HARD
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The minimum value of the expression 3z-3+2z-4 is equal to (where, z is a complex number)

HARD
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If z is a complex number satisfying |z21|=|z|+2 , then

MEDIUM
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If z3 , then the least value of z+14 is

EASY
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If z is complex number such that z-4z=2, then the greatest value of z is

EASY
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If z is a complex number, then the minimum value of z+z-1 is

EASY
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Which of the following is incorrect for any two complex numbers z1 and z2?

EASY
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If complex number z1 and z2 , argz1z2=0 , then z1-z2 is equal to

EASY
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The moduli of two complex numbers are less than unity, then the modulus of the sum of these complex numbers

EASY
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If z1 and z2 are two complex numbers, then z1-z2 is

MEDIUM
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For all complex numbers z1, z2 satisfying z1=12  and z2-3-4i=5 respectively, the minimum values of |z1-z2| is

EASY
IMPORTANT

For any complex numbers z1 , z2, the maximum value of z1z¯2+z¯1z2z1z2 is

MEDIUM
IMPORTANT

For any three complex numbers z1, z2 and z3; z1Imz¯2z3+z2Imz¯3z1+z3Im(z¯1z2) is equal to