Answer:

Step-by-step explanation:

Assuming ya meant

to slimplify, we use a variation of the pythagorean identity and a decomposition into the sin and cos
for the pythaogreaon identity

divide both sides by


since

subsitute

recall that

also that cos(x) is an even function and thus cos(-x)=cos(x)
therfore

so we get

decompose them into

and

to get

multiply by

to get

we can furthur simlify to get

the expression simplifies to tan(x)sin(x)
Answer:
reverse
Step-by-step explanation:
When you multiply or divide on one side of an inequaltiy, you have to mirror it on the other side and you have to reverse the inequality sign.
The answer is 72
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The length of each side would be 3 square meters