Tuesday

July 29, 2014

July 29, 2014

Posted by **anonymous** on Friday, June 18, 2010 at 10:40pm.

[sinx + tanx] / [cosx +1] = tanx

- maths - trigonometry -
**Ariel**, Friday, June 18, 2010 at 10:50pmI just got done with thi stuff and these are the formulas that helped me with alot.

tan(angle)=opposite/adjacent

coa(angle)=adjacent/hypotenuse

sin(angle)=opposite/hypotenuse

Is this what your asking for?

- maths - trigonometry -
**Reiny**, Saturday, June 19, 2010 at 12:13amthat's sort of a tricky one,

[sinx + tanx] / [cosx +1] = tanx

LS = (sinx + tanx)/(cosx+1) [(cosx-1)/cosx-1)]

= (sinxcosx - sinx + sinx - sinx/cosx)/(cos^2x - 1)

= [ (sinxcos^2x - sinx)/cosx]/(cos^2x - 1)

= sinx[cos^2x - 1)/cosx] / (cos^2x - 1)

= sinx/cosx

= tanx

= RS

**Related Questions**

maths - I'm reviewing for my exams, and I was sure that I was comfortable with ...

Trigonometric Identities - Which of the following are trigonometric identities, ...

Trigonometry - I don't understand how I'm supposed set the problem up or what ...

Trigonometry - Proofs - Prove that the average of the numbers n sin (n degrees...

Trigonometry - Use the properties of logarithms and trigonometric identities to ...

MATHS - if a student scores 58 in a maths exam predict the score they would get ...

Maths - Can someone give me the checkpoint exam topics that are required for a ...

maths - Prove the following trigonometric identities (i)(1+cotx)^2 +(1-cotx)^2=...

Trigonometry - Google this: 5.1 using fundamental identities Comcast Click and ...

maths letaracy,history,geography and life science - im going to grade 10 next ...