Answer:
Hi! The correct answer is (1448/3, 686)
Step-by-step explanation:
<u><em>~Solve for the first variable in one of the equations, then substitute the result into the other equation~</em></u>
Answer:
-(23/6)π
-(19/6)π
-3π
Step-by-step explanation:
cos2t=cos^2t-sin^2t => cos^2t=1-sin^2t =>cos2t=1-2sin^2t
sint=1-2sin^2t, if x=sint, thenn we have 2x^2+x-1=0
Here x=0.5, x=-1, as x=sint => sint = -1 solutions for -4π to -2π is t=-3π,
sint = 0.5 solutions for -4π to -2π is t= -(23/6)*π, and t = -(19/6)*π
Don't lie about giving branliest. People will help regardless.
2 years older then Marjorie.....m = Marjorie
m + 2 <== ur expression
