Please explain the steps involved after $F(x+h)-F(x)-BAh=Bo_1(h)+o_2(\phi(h))$ in detail

31 Views Asked by At

enter image description here

Please explain the steps involved after $F(x+h)-F(x)-BAh=Bo_1(h)+o_2\phi(h)$ in detail.

Note 1:here differentiable means Frechet differentiable

Source:Analysis for Applied Mathematics by WARD CHENEY(Page-121)