The value of the determinant formed by t...

The value of the determinant formed by the elements of an identity matrix is always

-1

-2

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CHHAYA PUBLICATION-DETERMINANT -EXERCISE 2A

If D=|{:(a1,b1,c1),(a2,b2,c2),(a3,b3,c3):}| and A1,B1,C1 etc. are the ...
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state which of the statement is true ?
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The value of the determinant formed by the elements of an identity mat...
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if |{:(3x,7),(2,4):}|=10 , find the value of x.
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If A =|{:(1,2),(4,2):}|, then show that |2A|=2|A|.
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Evaluate: |{:(" "a+ib,c+id),(-c+id,a-ib):}|
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If |{:(x-2,-3),(" "3x,2x):}|=3 ,find the value of x .
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Show that |{:(cos 15^@ ,sin 15^@),(sin 75^@,cos 75^@):}|=0
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Find the value of x if , |{:(2,4),(5,1):}|=|{:(2x,4),(6,x):}|
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Find the value of x if , |{:(3,x),(x,1):}|=|{:(3,2),(4,1):}|
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|{:(-1," "1," "1),(" "2,-2," "2),(" "3," "3,-3):}|
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|{:(13,16,19),(14,17,20),(15,18,21):}|
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|{:(" "1," "4,-3),(-4," "1," "2),(" "3,-2," "1):}|
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|{:(x,z,0),(0,y,y),(z,0,x):}|
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|{:(1,a,bc),(1,b,ca),(1,c,ab):}|
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|{:(1," "1," "1),(1,1+x," "1),(1," "1,1+y):}|
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|{:(1+a," "b," "c),(" "a,1+b," "c),(" "a," "b,1+c):}|
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|{:(" "1," "z,-y),(-z," "1," "x),(" "y,-x," "1):}|
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|{:(-a," "a," "a),(" "b,-b," "b),(" "c," "c,-c):}|
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|{:(0," "sinalpha,-cosbeta),(cosalpha," "0," "sinbeta),(cos alpha,-sin...
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