Question

if x= 1
y =2

and z =-3
then find the value if xy+yz+zx​

Answer 1

$\huge \huge\bold\color{blue}{\underbrace{\overbrace{\mathfrak{\color{red}{✍Answer⭐}}}}}$

Given:-

• x= 1
• y =2
• z =-3

To find :-

$\implies \mathtt{xy+yz+zx}$

So,

$\mathtt{ \implies(1)(2) + (2)( - 3) + ( - 3)(1)}$

$\mathtt{ \implies{2 + ( - 6) + ( - 3)}}$

$\mathtt{ \implies{2 - 6 - 3}}$

$\boxed {\color{green} \mathtt{ \implies - 7}}$