Question

Prove sec²theta-tan²theta=1​

Answer 1

Answer:

Step-by-step explanation:

To prove :

sec²θ - tan²θ = 1

Proof :

1 + ​tan²θ = sec²θ ( Identity )

sec²θ = 1 + ​tan²θ

sec²θ - tan²θ = 1

Hence proved.

Answer 2

Answer:

Step-by-step explanation:

To prove :

sec²θ - tan²θ = 1

Proof :

1 + ​tan²θ = sec²θ ( Identity )

sec²θ = 1 + ​tan²θ

sec²θ - tan²θ = 1

Hence proved.