Question

1/cos²75°-tan²75° find the answer

Answer 1

Answer:

1/cos² 75 - sin²75/cos²75

take LCM

1-sin²75/cos²75

now we know 1-sin²75 = cos²75

so

cos²75/cos²75 = 1.

Answer 2

Answer:

1

Step-by-step explanation:

1/cos²75° -tan²75°

=sec²75°-tan²75°

=1

hope this helps you