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hannahchilegirl6521
25.08.2019 •
Mathematics
Simplify the following expression by combining like terms 6y-23-y+72
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Ответ:
the correct answer is:
definition of sine in right triangle
explanation:
the ratio for sine is opposite/hypotenuse. this means that for the sine of angle b, we want the side opposite b, which is ae, over the hypotenuse, which is c:
sin b = ae/c
multiply both sides by c:
c sin b = (ae/c)*c
c sin b = ae
this is by definition of sine.
this also applies to step 8.