Help with matrices inverse
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Help with matrices inverse

[From: ] [author: ] [Date: 12-08-27] [Hit: ]
find the values of p and q.i dont want tojot down anwers on my hw but i want to learn how to do it not just answers.thank you-RT=I (since T=R⁻¹).So -6+pq=0 and -2-2q=1,giving p=-6,q=-1.......
matrix R(1 -2) and T = matrix (-2 1)
(3 p) (q .5)
If matrix T as the inverse of matrix R, find the values of p and q.
please dont wite the answer plainly steps will be helpful
i know how to find determinant and steps to find inverse
i dont want to jot down anwers on my hw but i want to learn how to do it not just answers.
thank you

-
RT=I (since T=R⁻¹).
RT=[-2-2q 0 ] =[1 0]
[-6+pq 3+5p] [0 1]
So -6+pq=0 and -2-2q=1,
giving p=-6,q=-1.
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