Question

Prove that tan + sec 0-1
tano - sec 0+1
1+ sin
cos o​

Answer 1

Step-by-step explanation:

tan+sec-1/tan-sec+1

=(tan+sec)-(sec²-tan²)/(tan-sec+1)

=(sec+tan)(1-sec+tan)/(tan-sec+1)

=sec+tan

=1+sin/cos