GATE EC 2019 Set 1 — Question 27
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+1 / -0EasyEigenvalues & EigenvectorsLinear AlgebraEngineering Mathematics
Engineering Mathematics → Linear Algebra → Eigenvalues & Eigenvectors
Last updated
Question
The number of distinct eigenvalues of the matrix is equal to ________.
Correct answer
3 to 3
Solution
The given matrix is an upper triangular matrix:
For any triangular matrix (upper or lower), the eigenvalues are simply the elements on its main diagonal.
The diagonal elements of matrix are .
So, the eigenvalues of are , , , and .
To find the number of distinct eigenvalues, we list the unique values from this set: .
There are 3 distinct eigenvalues.The final answer is
For any triangular matrix (upper or lower), the eigenvalues are simply the elements on its main diagonal.
The diagonal elements of matrix are .
So, the eigenvalues of are , , , and .
To find the number of distinct eigenvalues, we list the unique values from this set: .
There are 3 distinct eigenvalues.The final answer is
Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE EC question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on Linear Algebra
2026 Set 1 Q11Consider the differential equation , with…2026 Set 1 Q12A surface is given by and and are unit…2026 Set 1 Q23The relation between the input current () and the output voltage () of a circuit is governed…2026 Set 1 Q26Consider the matrix . Which…2026 Set 1 Q36Consider the two series, and , where …