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If z1 = 3, z2 = 7i, and z3 = 5 + 4i, show that z1(z2 + z3) = z1z2 + z1z3 - Mathematics

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प्रश्न

If z1 = 3, z2 = 7i, and z3 = 5 + 4i, show that z1(z2 + z3) = z1z2 + z1z3

बेरीज

उत्तर

z1 = 3

z2 = 7i

z3 = 5 + 4i

z2 + z3 = – 7i + 5 + 4i

= 5 – 3i

z1(z2 + z3) = 3(5 – 3i) + 15 – 9i  ........(1)

z1z= 3(– 7i)

= – 21i

z1z= 3(5 + 4i)

= 15 + 12i

z1z+ z1z3 = – 21i + 15 + 12i

= 15 – 9i  ........(2)

∴ From 1 and 2

z1(z2 + z3) = z1z2 + z1z3

Hence proved.

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Basic Algebraic Properties of Complex Numbers
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Complex Numbers - Exercise 2.3 [पृष्ठ ६०]

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सामाचीर कलवी Mathematics - Volume 1 and 2 [English] Class 12 TN Board
पाठ 2 Complex Numbers
Exercise 2.3 | Q 2. (i) | पृष्ठ ६०
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