Instrumentation Engineering
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
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.
Question 10
Open questionGAMCQ2 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. 
Your answerChoose one option.
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Open questionINMCQ1 markNeeds review
A matrix
satisfies
where
is a
identity matrix.The set of all possible eigenvalues of matrix
is ___.Your answerChoose one option.
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Open questionINMCQ1 markNeeds review
Which one among the following statements is true for the function
?Your answerChoose one option.
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