SYMKC 10

Please select the correct solution

• csc² x
• cot² x
• sin² x
• sec² x

sin²x + cos²x =

• 1

• 1/sinx

• sec²x

• csc²x

1 - sin²x =

• cos²x

• cos²x+1

• csc²x

• tan²x

1 + cot²x =

• sec²x

• sec²x - 1

• tan²x

• csc²x

Tags

CCSS.HSF.TF.C.8

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

Is this a pythagorean identity?
tan²x + 1 = secx

• Yes
• No

If $\sec\theta=-2$ , find $\cos\theta$ .

• $-\frac{1}{2}$

• $\frac{1}{2}$

• $2$

• $-\frac{1}{4}$

Tags

CCSS.HSF.TF.C.8

*

• sin x
• cos x
• tan x
• csc x

Tags

CCSS.HSF.TF.A.2

When verifying you must first ...

• pick a side to simplify 
• find a trig. identity 
• Change to sine and cosine
• Change Values

Simplify.

• sin²θ
• cosθ
• tanθ
• 1- sin²θ