Express the given complex number in the form a + ib: (5i)(-35i) - Mathematics

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Sum

Express the given complex number in the form a + ib: `(5i) (- 3/5 i)`

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Solution

`(5i) (- 3/5 i) = - 5 xx 3/5 xx i xx i`

= - 3i2

= - 3 (-1)  [∵ i2 = i]

= 3 = 3 + 0i

  Is there an error in this question or solution?
Chapter 5: Complex Numbers and Quadratic Equations - Exercise 5.1 [Page 103]

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NCERT Mathematics Class 11
Chapter 5 Complex Numbers and Quadratic Equations
Exercise 5.1 | Q 1 | Page 103

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