Question

(cos 21° – sin 21°)/(cos 21° + sin 21°) is equal to
(a) tan 24°
(d) tan 99°
(c) tan 66
(b) tan 21
Plz help me , I will mark ur answer brainliest if it is fast and detailed .........................​

Answer 1

Answer:

i think it would be option tan 21

if it write so plz mark me as a brain list

Answer 2

it's option A. the answer for your question. It's very simple just remember the formulas and the way of simplification you will get your destination

And if any doubt please comment me and follow me and mark this as a brainlist answer.........

thank you