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AAKASH SERIES-MATRICES -DETERMINANTS-PRACTICE EXERCISE
- |(0,b,-c),(-b,0,a),(c,-a,0)|=
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- |(0,p-q,p-r),(q-p,0,q-r),(r-p,r-q,0)|=
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- |(a-b,p-q,x-y),(b-c,q-r,y-z),(c-a,r-p,z-x)|=
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- |{:(x+y,0,0),(0,x-y,0),(0,0,x^(2)+y^(2)):}|=
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- If |(a,a,x),(m,m,m),(b,x,b)|=0 then x=
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- If |(x,2,7),(5,0 ,2),(3,-4,6)|=-180 then x=
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- If |{:(1+x,2,3),(1,2+x,3),(1,2,3+x):}|=0 then x =
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- |(-a^(2),ab,ac),(ab,-b^(2),bc),(ac,bc,-c^(2))|=
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- |(x,p,q),(p,x,q),(p,q,x)|=
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- |{:(logx,logy,logz),(log2x,log2y,log2z),(log3x,log3y,log3z):}|=
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- If D(r)=|(2^(r-1),2(3^(r-1)),4(5^(4-1))),(x,y,z),(2^(n)-1,3^(n)-1,5^(n...
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- The determinant Delta=|(a,a+b,a+2b),(a+2b,a,a+b),(a+b,a+2b,a)|=
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- If |((a^(2)+b^(2))//c, c, c),(a,(b^(2)+c^(2))//a,a),(b,b,(c^(2)+a^(2))...
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- |(a^(2)+2a,2a+1,1),(2a+1,a+2,1),(3,3,1)|
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- If A+B+C=pi then |{:(tan(A+B+C),tanB,tanC),(tan(A+C),0,tanA),(tan(A+B)...
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- |(sin^(2)x,cos^(2)x,1),(cos^(2)x,sin^(2)x,1),(-10,12,2)|=
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- |(cos (alpha+beta),-sin (alpha+beta),cos 2 beta),(sin alpha, cos alpha...
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- If |{:(a,b,c),(b,c,a),(c,a,b):}|^(x)=|{:(2bc-a^(2),c^(2),b^(2)),(c^(2)...
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- If a="cos"(4pi)/3+I"sin"(4pi)/3,then |(1,1,1),(1,a,a^(2)),(1,a^(2),a)|...
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- If A+B+C=pi then the value of |(sin(A+B+C), sinB, cosC),(-sinB,0,tanA)...
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