Question

✨​hєч αll вrαínlч guчѕ✌

Prove that:
$\frac{1 - \cos(a) }{1 + \cos(a) } = \frac{ \sin(a) }{1 + \cos(a) }$

✨dσn't ѕpαm
✨​fσllσw mє❤..​​​​​

Answer 1

Answer:

We should rationalize the given equation,

Now,

1-Cosa÷1+cosa x 1-cosa÷1-cosa

= (1-cosa) ²÷1²+cos²a

= sina÷1+cosa

Answer 2

$\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}⋆$