Question

Solve the c, d, e, f from the given equations.

e+2f=-1

2d+e=-0.2

2c+d+3e+4f=-0.5

-e-2f=1

Answer 1

Given equations are:

........................................................................(i)

......................................................................(ii)

......................................................(iii)

..................................................................................(iv)

Equation (i) and (iv) are same.

So there will be infinite solution of this equation.

We can let So

So

Now we can write value of e in equation (ii)

Now we can write value of e , f and d in equation (iii)

So ,