1. [-/12.5 Points] DETAILS SALGTRIG4 7.3.003. Find sin(2x), cos(2x), and tan(2x) from the given information. sin (x) = 3, , x in Quadrant I sin(2x) = cos (2x) = tan(2x) = Need Help? Read It Watch It 2. [-/12.5 Points] DETAILS SALGTRIG4 7.3.005. Find sin(2x), cos(2x), and tan(2x) from the given information. cos(x) = 12, csc(x) 0 sin(2x) = cos(2x) = tan(2x)= Need Help? Read It Watch It 5. [-/12.5 Points] DETAILS SALGTRIG4 7.3.029. Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 sin(16) cos(16) (b ) 2 sin(30) cos(30) Need Help? Read It Watch It 6. [-/12.5 Points] DETAILS SALGTRIG4 7.3.030. Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 tan (5) 1 - tan (50 ) 2 tan(50) (b) 1 - tan2(50) Need Help? Read It7. [-/12.5 Points] DETAILS SALGTRIG4 7.3.073. Prove the identity. cos (2x) - sin2(2x) = cos(4x) Use a Double-Angle Formula and simplify. cos2(2x) - sin2(2x) = cos(2 . Need Help? Read It Watch It 8. [-/12.5 Points] DETAILS SALGTRIG4 7.3.075. Prove the identity. (sin(x) + cos(x))2 = 1 + sin(2x) Expand the product, and use a Pythagorean Identity and a Double-Angle Formula to simplify. (sin(x) + cos(x))2 = sin(x) + 2 sin(x) cos(x) + = 1 + 2 sin(x) Need Help? Read It Watch It