Discover Questions

What is the tan^2(-30) in whole numbers? How to solve ((cosxy)+(x/y))dx+1+((x/y)cos(x/y))dy=0 please help? (1 pt) Find the equation of the tangent plane to the surface determined by
x^4y^3+z−25=0? What is the reason behind simplifying a fraction? please explain, thank you? Describe and correct the error in the following statement. If -6 is a solution of the polynomial equation f(x)=0,then -6 is a factor of f(X)?