bai17 10*x^30 +sin(x) +cos (x);

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function bai17

syms t

x=tan(t);

y= (1/tan(x)+ sin(x))^5 ;

z= (sin(x) + cos(y))^10 ;

A= 10*x^30 +sin(x) +cos (x);

B= 10*y^40+1/tan(x)+tan(x);

C=z^5 +z^4 + z^3 + z^2 + z;

disp('Cac nghiem cua bieu thuc A la:')

solve(A)

disp('Cac nghiem cua bieu thuc B la:')

solve(B)

disp('Cac nghiem cua bieu thuc C la:')

solve(C)

subplot(1,3,1)

ezplot(A)

subplot(1,3,2)

ezplot(B)

subplot(1,3,3)

ezplot(C)

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