Hello I need help with this question please , thank you

Find an equation for the line tangent to the curve at the point defined by the given value of t. Also, find the value of day at this point. dx x = 8 sin t, y = 4 cost, t= - 4 . . . The equation represents the line tangent to the curve at t= 4 (Type an exact answer, using radicals as needed.) The value of at t= IS dx 2 4 (Type an exact answer, using radicals as needed.)