Question

1+sin-cos/1+sin+cos=√1-cos/1+cos​

Answer 1

here's the proof!

(in the 4th step, we substituted 1 with cosec² - cot²

because we know, 1 + cot² = cosec²

so, cosec² - cot² = 1

and in the second last step we took cosec - cot common

Answer 2

Answer:

1+sin-cos/1+sin+cos=√1-cos/1+cos