Question :
A student has to find the solution of an equation cos(x)=1/2. She has to write the program such that exact values are shown at output. Which of the following codes would help her?
1. syms x;eqn = cos(x) == 1/2;vpa( solve(eqn,x))
2. syms x;eqn = cos(x) == 1/2;solve(eqn,x)
3. vpa(solve('cos(x)=1/2'))
4. syms x;eqn = cos(x) = 1/2;vpa(solve(eqn,x))
Answer :
3 - vpa(solve('cos(x)=1/2'))
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