Question

1-tanx/1+tanx formula please answer me​

Answer 1

Answer:

cosx-sinx

Step-by-step explanation:

1-tanx/1+tanx

1-tanx/secx ( secA-tanA=1)

1/secx-tanx/secx

cosx-sinx/cosx/1/cosx

cosx .. cosx get cancel then

cosx-sinx