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## Homework Statement

I am having trouble row reducing...

5cos(t) 5sin(t) | -cos(t)

2cos(t)+sin(t) 2sin(t)-cos(t) | sin(t)

## Homework Equations

## The Attempt at a Solution

I know I am allowed to multiply a row by a constant but I was wondering if I am allowed to multiply by a function?

I have row reduced it to

5cos(t) 5sin(t)|-cos(t)

sin(t) -cos(t)|sin(t)+(2/5)cos(t)

I was unable to reduce this any further so I tried solving the first equation for x1 and then plugging it into the second equation but it didn't come out pretty.

So I am curious if there are any trig identities which would make this problem easier?

Any help would be much appreciated. Thank you.