Use the Bisection Method to approximate, accurate to two decimal places, the value of the root of the given function in the given interval.
a. \(f(x)=x^2+2 x-4\) on \([1,1.5]\).
b. \(f(x)=\sin x-1 / 2\) on \([0.5,0.55]\)
c. \(f(x)=e^x-2\) on \([0.65,0.7]\).
d. \(f(x)=\cos x-\sin x\) on \([0.7,0.8]\).