Trig Identity

Please select the correct solution 
cos ² x + sin ² x=  

• 1
• csc ² x + sec ² x
• sin ² x
• 1 - sin ² x

Tags

CCSS.HSF.TF.C.8

What is csc(x) equivalent to?

• 1/sin(x)
• 1/tan(x)
• sin(x)
• 1/cos(x)

Tags

CCSS.HSF.TF.A.4

Is this a pythagorean identity?
tan²x + 1 = secx

• Yes
• No

Tags

CCSS.HSF.TF.C.8

 $Simplify\ \frac{1}{\csc\ x}\cdot\sin x$  

• 1

•  $\sin^2x$  

•  $\csc x$  

•  $\cos^2x$  

Rewrite tan(x) in terms of sin(x) and cos(x).

• tan(x) = cos(x)/sin(x)
• tan(x) = 1/cot(x)
• tan(x) = sin(x)/cos(x)
• tan(x) = opp/adj

Tags

CCSS.HSF.TF.C.8

 $\frac{\tan x}{\sec x}$  

•  $\cos x$  

•  $\csc x$  

•  $\cot x$  

•  $\sin x\$  

Tags

CCSS.HSF.TF.C.8

Reciprocal identity: cos x =

• 1/csc x

• 1/sec x

• 1/sin x

• 1/cos x

Tags

CCSS.HSF.TF.A.4