Simple and hard trig equation proof

Simple and hard trig equation proof

Postby Guest » Tue Mar 30, 2021 6:37 am

I can't solve this problem [tex]1-4 \cos ( x ) ^ { 2 } +2 \cos ( x ) \sin ( x ) =1- \dfrac{ 4 }{ 1+ \tan ( x ) ^ { 2 } }[/tex]
Attachments
IMG_20210330_112617.jpg
IMG_20210330_112617.jpg (472.25 KiB) Viewed 115 times
Guest
 

Return to Trigonometry, Pythagoras' Theorem, Sine Rule, Cosine Rule



Who is online

Users browsing this forum: No registered users and 1 guest

cron