two *x*sin(x)/cos(x)^ three + one /(cos(x)^ two) = zero
2 multiply by x multiply by sinus of (x) divide by co sinus of e of (x) cubed plus 1 divide by ( co sinus of e of (x) squared ) equally 0
two multiply by x multiply by sinus of (x) divide by co sinus of e of (x) to the power of three plus one divide by ( co sinus of e of (x) to the power of two) equally zero
2*x*sin(x)/cos(x)3 + 1/(cos(x)2) = 0
2*x*sinx/cosx3 + 1/cosx2 = 0
2*x*sin(x)/cos(x)³ + 1/(cos(x)²) = 0
2*x*sin(x)/cos(x) to the power of 3 + 1/(cos(x) to the power of 2) = 0
2xsin(x)/cos(x)^3 + 1/(cos(x)^2) = 0
2xsin(x)/cos(x)3 + 1/(cos(x)2) = 0
2xsinx/cosx3 + 1/cosx2 = 0
2xsinx/cosx^3 + 1/cosx^2 = 0
2*x*sin(x) divide by cos(x)^3 + 1 divide by (cos(x)^2) = 0