Answer:
a mathematical sentence thar has an equal sign
The correct answer is the second from the top.
X=6 you need to multiply by 2
The equation for area of a triangle is A= 1/2bh so a=1/2(12cm)(9.6cm)







The first case occurs in

for

and

. Extending the domain to account for all real

, we have this happening for

and

, where

.
The second case occurs in

when

, and extending to all reals we have

for

, i.e. any even multiple of

.