## anonymous 3 years ago verify tanΘ-secΘ = cosΘ/1+sinΘ

1. anonymous

rationalise cosa/1+sin a and youll get the right part of equation

2. anonymous

|dw:1362720006791:dw|

3. anonymous

4. anonymous

k here it goes do you know how to rationalise

5. anonymous

NO

6. anonymous

okay then multiply in the numerator and denominator by 1-sinx and see if you get it now

7. abb0t

$\tan(\theta) = \frac{ \sin(\theta) }{ \cos(\theta) }, \sec(\theta) = \frac{ 1 }{ \cos(\theta) }$ use the identities i provided to finish the proof.

8. abb0t

combine like terms. etc. follow your algebra rules to combine fractions and so forth.

9. Directrix

@Tuhu ---> Are the signs correctly posted on this --> tanΘ-secΘ = cosΘ/1+sinΘ

10. anonymous

Yep, ^^ don't worry i'm done with this :||

11. Directrix

What do you mean? I am about to verify it. It is fairly short.

12. abb0t

time to go home.

13. Directrix

The signs on the problem are correct, right?

14. anonymous

Yes

15. Directrix

Great. See you later.

16. Directrix

17. Directrix

18. Directrix

This statement does not appear to be a trigonometric identity. @Tuhu

19. anonymous

Really? umm you guys are so helpful ^^ I really like drawing compare to math because i suck solving problems -_____-|dw:1362726331057:dw|