The slope of the tangent = `dy/dx` at (pi,-1).
`dy/dx = -sinx-cosx`
The slope of the tangent is equal to 1.
The equation of the tangent is `y-(-1)=1(x-pi)` .
that is `x-y=pi+1`
We have a Math tutor online right now to help you!
To chat with a tutor, please set up a tutoring profile by creating an account and setting up a payment method. If you initiate a chat, please note you will be charged $0.50 a minute for tutoring time.