Syntax for fzero function in matlab

Question

1) Explain the function of Attribute ‘EVENT, REVERSE in detail with suitable example.

2)  Write down the name of two tool box in Matlab?

3) Write down a matlab code to determine the roots of polynomial expression given below:

F(x)=x⁷+65x⁵+24x+1

4)  Write down the name of the function and write down the syntax for the function which is  used to estimate the polynomial?

5) Write down a Matlab code to determine the output voltage of assuming amplifier where input voltage:

V₁=100mv,V₂=200mv,V₃=300mV and Resistor values:
R₁= 20 K ohm, R₂=10Kohm, R₃=50Kohm. Let the Rf value be 100Kohm. Suppose the Inverting Configuration.

6)  Write down the Syntax for FZERO function in Matlab.

7)  What is meant by Entity?

8) Write down the parts of the PACKAGE?