Question

3sint-2=cos^2 t

Answer 1

cos^2t = 1-sin^2t

Substitute and solve.

Answer 2

You get:
sin^2 - 3sint + 1 =0

Answer 3

relpace cos^2 t by 1 - sin^2 t
and solve the quadratic

Answer 4

I get:
\[sin^2t+3sint-3=0\], not \[sin^2-3sint+1=0\]

Answer 5

\[3\sin t=2 \cos^2 t\]

Answer 6

Yeah, right. Whatever. Re-arrange and solve is the point.

Answer 7

3sint-2=cos^2 t
3sint - 2 = 1 - sin^2 t
sin^2 t + 3 sin t - 3 = 0

Answer 8

you'll need to use the quadratic formula to solve this
or complete square if you prefer

Answer 9

ok thx