Question

24.Prove that: 1−

1+

= ( − tan )²​

Answer 1

Answer:

WDG4QFC5RVGETGVA

Step-by-step explanation:

TWRABEHN

Answer 2

Answer:

• -tan²

Step-by-step explanation:

• 1-1+=(-tan)²

• 1-1=tan²

• 1=1+tan²

• 1=sec²

• 1-sec²=0  // i+tan²=sec²

so

• -tan²