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Indian Navy SSR (Sailor) Limits and Continuity — practice questions — page 2

Explore 73 free Limits and Continuity questions in Indian Navy SSR (Sailor) Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Limits and Continuity questions and exercises with answers

Showing questions 31–60 of 73.

Tap every matrix that must be squareRead the answer and worked solution →Complete the definition of a matrixRead the answer and worked solution →When is a product defined?Read the answer and worked solution →True or false: transposesRead the answer and worked solution →Symmetric or skew symmetric?Read the answer and worked solution →True or false: matrix algebraRead the answer and worked solution →Complete the equality conditionRead the answer and worked solution →Order the steps: is AB defined, and what order is it?Read the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Special square matricesRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Tap every statement true of the identity matrixRead the answer and worked solution →Flip and pair: notation with meaningRead the answer and worked solution →True or false: inversesRead the answer and worked solution →Complete the scalar multiplication rulesRead the answer and worked solution →Which operation needs matching orders?Read the answer and worked solution →Spot the odd one outRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →Assertion and reason: structureRead the answer and worked solution →Order the steps: test whether A is symmetricRead the answer and worked solution →True or false: orders and shapesRead the answer and worked solution →Complete the arc length relationRead the answer and worked solution →Match each identity to its nameRead the answer and worked solution →The Pythagorean identitiesRead the answer and worked solution →Odd function or even function?Read the answer and worked solution →Complete the degree and radian conversionRead the answer and worked solution →True or false: identities and parityRead the answer and worked solution →Match each sum or difference formula to its resultRead the answer and worked solution →

Worked practice questions

Tap every matrix that must be square

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Questions
  1. Items
    1. Text
      Diagonal matrix
      Matches the category
      Yes
    2. Text
      Scalar matrix
      Matches the category
      Yes
    3. Text
      Identity matrix
      Matches the category
      Yes
    4. Text
      Row matrix
      Matches the category
      No
    5. Text
      Zero matrix
      Matches the category
      No
    Category
    Must be a square matrix
  2. Items
    1. Text
      A′ = −A
      Matches the category
      Yes
    2. Text
      It is a square matrix
      Matches the category
      Yes
    3. Text
      A′ = A
      Matches the category
      No
    4. Text
      Every entry is zero
      Matches the category
      No
    Category
    True of a SKEW symmetric matrix
Diagonal, scalar and identity matrices are all special square matrices a zero matrix need not be. Source: syllabus Maths Part I, Ch 3 Matrices.

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Complete the definition of a matrix

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Missing parts
  1. Answer
    rectangular
    Choices
    1. rectangular
    2. circular
    3. triangular
  2. Answer
    m × n
    Choices
    1. m × n
    2. n × m
    3. m + n
Complete the statement
A matrix is an ordered {0} array of numbers or functions. One with m rows and n columns is said to have order {1}.
The opening line of the summary. Source: syllabus Maths Part I, Ch 3 Matrices.

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When is a product defined?

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Questions
  1. Question
    For AB to be defined, the columns of A must match
    Choices
    1. the columns of B
    2. the rows of B
    3. nothing in particular
    Correct choice
    the rows of B
  2. Question
    If A is m × n and B is n × p, then AB has order
    Choices
    1. n × n
    2. p × m
    3. m × p
    Correct choice
    m × p
  3. Question
    Is AB = BA in general?
    Choices
    1. No
    2. Yes, always
    3. Only for row matrices
    Correct choice
    No
  4. Question
    (AB)′ equals
    Choices
    1. A′B′
    2. B′A′
    3. AB
    Correct choice
    B′A′
AB exists only when the number of columns of A matches the number of rows of B, and the answer takes the outer dimensions. Source: syllabus Maths Part I, Ch 3 Matrices.

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