Question

prove that, secA-tanA = 2cot2A​

Answer 1

Answer:

See the explanation

Step-by-step explanation:

Sec²A-Tan²A=1 we all know that from trigo identities

(Sec a+tan a) (SecA-TannA)=1

also 1=cosec²a-cot²a ,Now I gave you the hint

if you solve it by yourself then it will be amazing if not then I will solve it for you