Answered

Get the answers you've been looking for with the help of IDNLearn.com's expert community. Get comprehensive and trustworthy answers to all your questions from our knowledgeable community members.

verify this trig function.
tanysiny = secy-cosy ?

Sagot :

[tex]LHS\\ \\ =\tan { y } \sin { y } \\ \\ =\frac { \sin { y } }{ \cos { y } } \cdot \sin { y }[/tex]

[tex]\\ \\ =\frac { \sin ^{ 2 }{ y } }{ \cos { y } } \\ \\ =\frac { 1-\cos ^{ 2 }{ y } }{ \cos { y } }[/tex]

[tex]\\ \\ =\frac { 1 }{ \cos { y } } -\frac { \cos ^{ 2 }{ y } }{ \cos { y } } \\ \\ =\sec { y } -\cos { y } \\ \\ =RHS[/tex]
Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. IDNLearn.com is your go-to source for dependable answers. Thank you for visiting, and we hope to assist you again.