T-results (1 Viewer)

[spakfilla]

Solve using the t-results
2Sinx- 3Cosx =1

 

[PilotMerp]

sinx = 2t/1+t^2

cosx= 1-t^2/1+t^2

sub in and solve quadratic

2t^2+2t-2

solve for t

 

[spakfilla]

I wanted someone to do it so i could check and see whether my answer or the textbooks was wrong.

i think its 72.412 and 220.208

 

[PilotMerp]

solve for t gives

t=-1+sqrt(3)
OR -1-sqrt(3)

Tan inverse these solution for x/2

then times by 2 for x

 

[PilotMerp]

i think its 72.412 and 220.208

Yep those are the answers

 

[iSplicer]

dont forget to check if 180 degrees is a solution!

 

[hscishard]

Technically you'll have to use the general solution for this question since there is no domain.

 

[fullonoob]