How does 2tanx+tanx(1-tan^2x) show tanx=0 and tan^2x=3??
2tanx + tanx - tan^3x
so tanx=0 or tan^2x=3
basically you can expand and factorise or just factorise out the tanx
Thanks for posting! You just need to create an account in order to submit the post
Already a member?
Oops, something wasn't right
please check the following:
Not got an account?
Sign up now
© Copyright The Student Room 2016 all rights reserved
The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.
Register Number: 04666380 (England and Wales), VAT No. 806 8067 22
Registered Office: International House, Queens Road, Brighton, BN1 3XE