Using the Value of A Function...2

[nycmathguy]

Section 4.2

 

[MathLover1]

=> false
correct is:

and also

 

[nycmathguy]

=> false
correct is:

and also

cos(pi - t) = - cost =

-cos(t) = 4/5

Now solve for t. Yes?

 

[MathLover1]

Yes

 

[nycmathguy]

Yes

Ok. Cool.

 

[nycmathguy]

Yes

 

[MathLover1]

perfect

 

[nycmathguy]

perfect

Thanks. No beach today. Too cold to walk on the boardwalk.