Q62.Let (−2 −13 i) 3 = x+iy27 (i = √−1), (1) 91 (2) -85 (3) 85 (4) -91
What This Question Tests
This question tests the ability to expand a complex number raised to the power of 3 and then equate the imaginary part of the result with the given expression to find the value of y. There might be an ambiguity in the input format '−13 i' and 'iy27'.
Concepts Tested
Formulas Used
(a+bi)³ = a³ + 3a²(bi) + 3a(bi)² + (bi)³
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📋 Question Details
- Chapter
- Complex Numbers
- Topic
- Powers of complex numbers
- Year
- 2019
- Shift
- 11 Jan Shift 1
- Q Number
- Q62
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 5: Complex Numbers and Quadratic Equations
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