Today one of my kids asked me this question:
We were trying to simplify the expression
sin(theta) / sin(90-theta) when a student just popped me with an answer: it is (theta) / (90-theta)
When I tried to explain that we cannot just cancel out the sin, the big question came:
WHY can’t we cancel that out?
Can someone help me answer this :/? Because it seems no matter how I try to explain it, it doesnt exaclt make sense…
And it’s xenolinguistics for the win!
Fun read. Haha
Today one of my kids asked me this question:
We were trying to simplify the expression
sin(theta) / sin(90-theta) when a student just popped me with an answer: it is (theta) / (90-theta)
When I tried to explain that we cannot just cancel out the sin, the big question came:
WHY can’t we cancel that out?
Can someone help me answer this :/? Because it seems no matter how I try to explain it, it doesnt exaclt make sense…
Properly introduce (reintroduce) rational functions and discuss what f(x) / g(x) means.
A really obvious one is if f(x) =1 …. f(2x)/f(x) clearly does not equal (2x)/(x)