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If A=|{:(3,5),(2,4):}|, find A^(-1)....

If `A=|{:(3,5),(2,4):}|`, find `A^(-1)`.

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To find the inverse of the matrix \( A = \begin{pmatrix} 3 & 5 \\ 2 & 4 \end{pmatrix} \), we will follow these steps: ### Step 1: Calculate the Determinant of A The determinant of a 2x2 matrix \( A = \begin{pmatrix} a & b \\ c & d \end{pmatrix} \) is given by the formula: \[ \text{det}(A) = ad - bc \] For our matrix \( A \): ...
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If A^(-1)=|{:(1,3,3),(1,4,3),(1,3,4):}|" and B"=[{:(5,0,4),(2,3,2),(1,2,1):}]," then find"(AB)^(-1)

Let A=[{:(,2,1),(,0,-2):}], B=[{:(,4,1),(,-3,-2):}] and C=[{:(,-3,2),(,-1,4):}] . Find A^2+AC-5B .

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A=[{:(3,5),(-2,4):}] Find the adjoint of A.

If A = |{:(1,1,-2),(2,1,-3),(5,4,-9):}| , find |A|.

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NAGEEN PRAKASHAN ENGLISH-DETERMINANTS-Miscellaneous Exercise
  1. If A=|{:(3,5),(2,4):}|, find A^(-1).

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  2. Prove that the determinant [xsinthetacostheta-sintheta-x1costheta1x]is...

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  3. Without expanding the determinant, prove that |a a^2b c bb^2c a cc^2a ...

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  4. Ecaluate [{:(cosalphacosbeta,cosalphasinbeta,-sinalpha),(-sinbeta,co...

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  5. " if a,b, and c are real number and " |{:(b+c,,c+a,,a+b),(c+a,,a+b,...

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  6. Solve the following determinant equation: |[x+a, b, c], [c, x+b, a],...

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  7. Using properties of determinants, prove that |[a^2, bc, ac+c^2] , [a^...

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  8. If A^(-1)=[3-1 1-15 6-5 5-2 2] and B=[1 2-2-1 3 0 0-2 1] , find (A B)^...

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  9. Let A=[{:(1,-2,1),(-2,3,1),(1,1,5):}]. Verify that ltbtgt (i) [adjA]^...

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  10. Evaluate |x y x+y y x+y xx+y x y| .

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  11. Evaluate the following: |[1,x,y],[1, x+y, y],[1, x, x+y]|

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  12. Using properties of determinants. Prove that|alphaalpha^2beta+gammarho...

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  13. For any scalar p prove that =|[x,x^2, 1+p x^3],[y, y^2, 1+p y^3],[z, z...

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  14. show that |{:(3a,,-a+b,,-a+c),(-b+a ,,3b,,-b+c),( -c+a,, -c+b,,3c):}| ...

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  15. Show that |(1, 1+p, 1+p+q), (2, 3+2p, 4+3p+2q), (3, 6+3p, 10+6p+3q)|=1...

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  16. Show that |[sinalpha, cosalpha, cos(alpha+delta)],[sinbeta, cosbeta, ...

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  17. Solve the system of equations2/x+3/y+(10)/z=4,4/x-6/y+5/z=1,6/x+9/y-(2...

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  18. Choose the correct answer in questions 17 to 19: If a, b, c are in ...

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  19. If x, y, z are non-zero real numbers, then the inverse of matrix A=[(...

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  20. Let A=|1sintheta1-sintheta1sintheta-1-sintheta1|, where 0lt=thetalt=2p...

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