Complete GATE IN 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 10–12 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 4 of 22

Question 10

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GAMCQ2 marksNeeds review
Circles

,

, and

, with centers

,

, and

, and radii

,

, and

, respectively, touch each other as shown in the following figure. Given

cm,

cm and the angle

is

,

_____ cm.
Diagram for Instrumentation Engineering question 10

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Question 11

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INMCQ1 markNeeds review
A matrix

satisfies

where

is a

identity matrix.
The set of all possible eigenvalues of matrix

is ___.
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Question 12

Open question
INMCQ1 markNeeds review
Which one among the following statements is true for the function

?
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