Question

cscA - cosA .cotA =

senA​

Answer 1

Respuesta:

$Csc(A)-Cos(A)*Cot(A)=Sen(A)$

$Cos(A)-Cos(A)*\frac{Cos(A)}{Sen(A)}=Sen(A)$

$\frac{1}{Sen(A)} -Cos(A)*\frac{Cos(A)}{Sen(A)}=Sen(A)$

$\frac{1}{Sen(A)}(1-Cos^2(A))=Sen(A)$

$\frac{1}{Sen(A)}(Sen^2(A)) =Sen(A)$

$\frac{Sen^2(A)}{Sen(A)} =Sen(A)$

$Sen(A)=Sen(A)$

Explicación paso a paso: