Question

Using the triangle, which statements are true? there are 3 correct answers

Answer 1

The first one, the third one, and the fourth one

Explanation:

The 1st one is the Pythagorean identity. One of the most essential trig identities you have to remember.

The second one is false because A is equal to 60 and b is equal to 30 and the left side turns into 0.5 while the other side becomes -0.5.

The third one is true since it is a distinction of the identity
`tan^2+1` =
`sec^2` (OR you can simply just subtract
`tan^2` from either side).

The fourth one is true since it's just a different version of
`1+tan^2=sec^2`.