Question

(1-tan a/1+tan a)^2=tan^2a​

Answer 1

Answer:

Step-by-step explanation:

<1-sina/cosa / 1+sina/cosa >²

<cosa-sina/cosa / cosa+sina/cosa>²

cosa-sina/cosa+sina

tan²a

sin²a/cos²a

1-cos²a/1-sin²a

yur question is wrong plz check . i am a PGT teacher of maths