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elena-14-01-66 [18.8K]
3 years ago
14

How do you reduce the ratio 4:80

Mathematics
1 answer:
4vir4ik [10]3 years ago
8 0
You reduce by since they are even number you divide each by 2, 2:40, if you can still divide then do so, it simplifies to 1:20
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   \frac{sinx}{1-cos x}    =       \frac{sinx(1+cosx)}{(1-cosx)(1+cosx)}     =  \frac{sinx + sinx cosx}{1-cos^{2}x }   =  \frac{sinx+sinxcosx}{sin^{2}x }

                             

                                  =\frac{sinx}{sin^{2}x }   +   \frac{sinxcosx}{sin^{2}x }

                                   

                                   =\frac{1}{sinx}   +   \frac{cosx}{sinx}

             

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\frac{sinx}{1-cos x}     =         cosecx  +  cot x

Note that;

\frac{1}{sinx}  = cosecx                        

         

 \frac{cosx}{sinx}   =       cot x

                                     

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