Answer:
sin2θ - cos2θ = 2sin² θ
Step-by-step explanation:
hello :
tan θ = 1 means : sinθ /cosθ so : sinθ =cosθ
sin2θ = 2sin θ cosθ =2sin² θ
cos2θ = cos²θ - sin²θ = sin²θ - sin²θ =0
sin2θ - cos2θ = 2sin² θ
Answer:
C) 161/163
Step-by-step explanation:
First, you add up all the students for both genders.
Female- 193+ 214 +197+ 201 = 805
Male- 216+ 207+ 198 + 194 = 815
That gives you a fraction on 805/815 which you simplify to 161/163
So your answer would be C, 161/163 :)
-17/20, 0.64, 0.75 Hope that helps.
Answer:
The equation is y=1/2x+5
Step-by-step explanation: