- #1
amd123
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Homework Statement
[tex]\frac{secx-cscx}{secx+cscx}=\frac{tanx-1}{tanx+1}[/tex]
[tex]\frac{(tan^{2}x - cot^{2}x)}{(tanx + cotx)}= (tanx - cotx)[/tex]
[tex]tan^{2}2x+sin^{2}2x+cos^{2}2x=sec^{2}2x[/tex]
[tex]cot^{2}2x+cos^{2}2x+sin^{2}2x=csc^{2}2x[/tex]
The Attempt at a Solution
I've tried many times in my notebook and I'm posting these on hear as a last resort. Could someone please explain how these are done as my teacher LACKS the ability to teach.