Open Question: How do I prove this identity: 1 + ( 1 / tan²(x) ) = ( 1 / sin²(x) ) ?
7:30 Publicado por Flechado16
.........1................1
.1+ -------------- =-----------
.......tan^2(x)......sin^2(x)
.1+ -------------- =-----------
.......tan^2(x)......sin^2(x)
...tan^2(x)+1
=-------------------
.......tan^2(x)
,,,,sec^2(x)
=------------------
.....tan^2(x)
.....1/cos^2(x)
=----------------------
...sin^2(x)/cos^2(x)
......1...........cos^2(x)
=------------- x -----------
...cos^2(x).....sin^2(x)
......1
=-------------- prove//
...sin^2(x)
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