mnyearsaghir mnyearsaghir

19-07-2020
Mathematics

contestada

csc^2 xcos^2 x=csc^2 x-1

prove the identity

Respuesta :

Alfpfeu Alfpfeu

19-07-2020

Answer:

Step-by-step explanation:

Hello

[tex]csc^2(x)-1=\dfrac{1}{sin^2(x)}-1=\dfrac{1-sin^2(x)}{sin^2(x)}\\=\dfrac{cos^2(x)}{sin^2(x)}=cos^2(x)csc^2(x)[/tex]

hope this helps

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