If the point (λ+1,1),(2λ+1,3) and (2λ+2,2λ) are collinear then the possible value of λ is
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Find the inverse of the matrices , if it exists.[6−2−31]
If f(x)=⎣⎡cosxsinx0−sinxcosx0001⎦⎤ and g(y)=⎣⎡cosy0−siny010siny0cosy⎦⎤, then [f(x)g(y)]−1 is equal to
If A=, then show that A−3I=2(I+3A−1).
If A=⎣⎡231−3215−4−2⎦⎤, find A−1. Using A−1 solve the system of equations2x−3y+5z=113x+2y−4z=5x+y− 2z=3
A= [cosα sinα −sinαcosα] ,then find which of the following are correct I) A is singular matrixII) A−1=ATIII) A is symmetric matrixIV) A−1=−A
The matrix ⎩⎨⎧111111111⎭⎬⎫ has
Lets A=[0−550] be a skew symmetric matrix and I+A is non singular, then the matrix B=(I−A)(I+A)−1 is
If A=[a+ib−c+idc+ida−ib] and a2+b2+c2+d2=1, then A−1 is equal to