Using solve to solve a complex trigonometric equation

i want to solve the trigonometric equation, but actual answers and the answers matlab gives me are different,,, please help me to get correct answers,,

here's my code

syms x;
assume(x>=0 & x<=2*pi);
f(x) = cos(x) * (1 - sin(x));
Y = solve( f(x) == 0);
Y
Y =
pi/2

actually, there should be one more.. 1.5pi,,, please help me :(

[Peter Toth]

https://uk.mathworks.com/matlabcentral/answers/265627-solving-simple-symbolic-trigonometry-equations

Answer 1

[Mrutyunjaya Hiremath]

Hello Junha Kim,

syms x;
assume(x>=0 & x<=2*pi);

eqn = cos(x)*(1-sin(x)) == 0;
[solx, parameters, conditions] = solve(eqn, x, 'ReturnConditions',true);

assume(conditions);
restrictions = [x>=0, x<=2*pi];
solk = solve(restrictions, parameters);

valx = subs(solx, solk)

for more information, refer here

[Junha Kim]

I really appreciate for your help. Thank You.