Per later schools question and answer asked over students to indicate what they feel is the main important factor for a student to do in order for you to gain success. The one that response stood out from the rest was practice. Successful persons are not born successful; they become successful by just hard work and perseverance. This is how you can get your goals. followed below some question and answer examples that you would certainly make use of to supercharge your knowledge and gain insight that will assist you to continue your school studies.

## Question:

Which of the following are identities? Check all that apply. A. sin^2x – cos^2x = 1 B. sin^2x = 1 – cos^2x C. tan^2x = 1 + sec^2x D. cot^2x = csc^2x – 1

## Answer:

The **trigonometry identities **are: (b) and (d)

The **basic trigonometry identity **is:

The above **identity **means that, options (a) and (c) are false

Subtract both sides by cos^2(x)

So, we have:

The above means that, option (b) is true

Divide through by cos^2(x)

Rewrite the equation as:

Hence, the **identities **are: (b) and (d)

Read more about **trigonometry identities** at:

From the answer and question examples above, hopefully, they can help the student deal with the question they had been looking for and keep in mind of every thing declared in the answer above. Then can potentially have some sharing in a group discussion and also learning with the classmate about the topic, so another student also possess some enlightenment and still keeps up the school learning.