Question 1: Find , if [2003]

Answer:

Therefore

and

Hence

Question 2: Given , find: i) the order of matrix ii) the matrix [2012]

Answer:

Therefore . Hence the order of Matrix is

Let

Therefore

Therefore

and

Solving we get

Hence

Question 3: If find the value of . [1981]

Answer:

Therefore

Question 4: If , and find: i) ii) [1991]

Answer:

i)

ii)

Question 5: Find , if [1992, 2013]

Answer:

Therefore

and

Question 6: Given , and ; Find such that . [2005]

Answer:

Question 7: Find the value of given that , , and . [2005]

Answer:

Therefore

Question 8: If , and and matrix of the same order and is the transpose of the matrix, find . [2011]

Answer:

Question 9: Given , and ; Find the matrix such that . [2013]

Answer:

Question 10: Let , and . Find [2006]

Answer:

Question 11: Let , . Find [2007]

Answer:

Question 12: Given , and and . FInd the value of . [2008]

Answer:

Therefore

and

Question 13: Given , , and . Find . [2010]

Answer:

Question 14: Evaluate [2010]

Answer:

Question 15: If , , find . [2012]

Answer:

Question 16: If . Find . [2014]

Answer:

Question 17: Solve for

i)

ii)

iii) [2014]

Answer:

i)

Therefore

Solving the above two equations we get

and

ii)

Therefore

Also

Substituting we get

iii)

Therefore

Question 18: If and , is the product of possible. [2011]

Answer:

The order of matrix and the order of matrix .

Since the number of columns in is equal to the number of rows in , the product is possible.

Some somes have wrong answer

Pls edit again

It creates confusion

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could you please provide the incorrect question number… we will fix it.

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best site for icse practice loved it

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could you please point me the the wrong question… will fix it

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