Question

what is the valve of sec²Φ-tan²Φ​

Answer 1

$\huge\dag \underline{ \boxed{\sf{ \purple{գυєѕτíοи}}}} \dag$

what is the value of sec²Φ-tan²Φ

${\red{\huge\underbrace{Answer}}}$

But what is the value of Φ.

The question is incomplete.

Answer 2

Answer:

1

Step-by-step explanation:

it's a trignometric identity