WILL GIVE BRAINLIEST. Use the Pythagorean identity and tangent identity to find Tanθ if sinθ= -1 and 0 ≤θ<2π radians. (ie. find all tanθ on the unit circle when sinθ= -1).

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.