Question

Use "t results" to solve cosx-sinx=1 for 0<=x<=360

Answer 1

what is "t results"?

Answer 2

the t formulas. for example sinx = 2t/(1+t^2)

Answer 3

what is the one for cos?

Answer 4

(1-t^2)/(1+t^2)

Answer 5

2t/(1+t^2)-(1-t^2)/(1+t^2) = 1 then?

Answer 6

I've never heard of these O_o

Answer 7

lol i think t = tanx here

Answer 8

no idea what this is...sorry

Answer 9

t= tan(x)/(2)

Answer 10

2t/(1+t^2)-(1-t^2)/(1+t^2) = 1
multiply by 1+t^2
2t-1+t^2 = 1+t^2
2t-1=1
2t=2
t=1
tan(x)/2=1
x=arctan(2)?

Answer 11

it gives t = 1
so tan(x/2) = 1
x/2 = pi/4, 5pi/4
x = pi/2, 5pi/2

Answer 12

It's the half angle (x/2) @zzr0ck3r

Answer 13

ahh its tan(x/2)?

Answer 14

ahh

Answer 15

gotcha ? @hothand621

Answer 16

2t/(1+t^2)-(1-t^2)/(1+t^2) = 1
multiply by 1+t^2
2t-1+t^2 = 1+t^2
2t-1=1
2t=2
t=1
tan(x/2)=1
x/2=arctan(1)
find the values for arctan(1) which are pi/4 and 5pi/4, so
x/2 = pi/4 so x = pi/2 and x/2 = 5pi/4 so x = 5pi/2

Answer 17

had to finish what I started:)