Fundamental Trig Identities

sin² Θ + cos² Θ =

• 1

• 0

• -1

• tan² Θ

• tan Θ

• cot Θ

• 1

• none of these

Tags

CCSS.HSF.TF.C.8

• cos Θ

• csc Θ

• sec Θ

• none of these

Tags

CCSS.HSF.TF.A.2

• sin Θ

• csc Θ

• sec Θ

• none of these

Tags

CCSS.HSF.TF.A.4

• sin Θ

• cos Θ

• csc Θ

• none of these

Tags

CCSS.HSF.TF.A.2

• sin Θ

• cos Θ

• sec Θ

• none of these

Tags

CCSS.HSF.TF.A.4

1 + tan² Θ =

• sec² Θ

• csc² Θ

• cot² Θ

• none of these

cot² Θ + 1 =

• sec² Θ

• csc² Θ

• tan² Θ

• none of these

Which of the following is not a pythagorean identity?

• cot²x + 1 = csc²x

• csc²x + 1 = cot²x

• cot²x - csc²x = -1

• csc²x - cot²x = 1

Tags

CCSS.HSF.TF.C.8

Select all that are true.

• $\cot\theta=\tan\left(\frac{\pi}{2}-\theta\right)$

• $\sec\left(\frac{\pi}{2}-\theta\right)=\csc\theta$

• $\sin\theta=\cos\ \left(\frac{\pi}{2}-\theta\right)$

• $\cot\left(\frac{\pi}{2}-\theta\right)=\tan\theta$

• $\csc\left(\frac{\pi}{2}-\theta\right)=\sec\theta$