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Yellowjacket3166
10.06.2020 •
Mathematics
Prove each identify
cos X(tanX+cotX) =cscX
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Ответ:
Step-by-step explanation:
cos X(tanX+cotX) =cscX
cos X(sinx/cosx +cosx/sinx) =cscx
cos X (sin²+cos²/cossin)=cscx
cosx(1/cossin)=cscx
cross out cosines
1/sinx=cscx
Ответ:
12x4(+3)=68 I believe this is the answer