## Tuhu Group Title verify tanΘ-secΘ = cosΘ/1+sinΘ one year ago one year ago

1. Meinme Group Title

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

2. Tuhu Group Title

|dw:1362720006791:dw|

3. Tuhu Group Title

4. Meinme Group Title

k here it goes do you know how to rationalise

5. Tuhu Group Title

NO

6. Meinme Group Title

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

7. abb0t Group Title

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

8. abb0t Group Title

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

9. Directrix Group Title

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

10. Tuhu Group Title

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

11. Directrix Group Title

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

12. abb0t Group Title

time to go home.

13. Directrix Group Title

The signs on the problem are correct, right?

14. Tuhu Group Title

Yes

15. Directrix Group Title

Great. See you later.

16. Directrix Group Title

17. Directrix Group Title

18. Directrix Group Title

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

19. Tuhu Group Title

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