The model shows the expression 21 + 9. A model with 3 rows of 7 squares and 3 rows of 3 squares. Which expression is equivalent
2 answers:
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If the equation is
then rewrite the equation as
Divide boths sides by 7:
Since , we can factorize this as
Now solve for <em>x </em>:
where <em>n</em> is any integer.
If you meant sin(2<em>x</em>) instead, I'm not sure there's a simple way to get a solution...