One container has 28 kilograms of flour and another has 4 kilograms. How many kilograms must be taken from one container, so eac
2 answers:
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by the double angle identity for sine. Move everything to one side and factor out the cosine term.
Now the zero product property tells us that there are two cases where this is true,
In the first equation, cosine becomes zero whenever its argument is an odd integer multiple of
which occurs twice in the interval