Trig Identities

What is csc(x) equivalent to?

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

Tags

CCSS.HSF.TF.A.4

Please select the correct solution

• csc² x
• cot² x
• sin² x
• sec² x

Please select the correct solution

• csc x
• sec x
• cot x
• tan x

Solve the following for cos²θ:
sin²θ + cos²θ = 1

• cos²θ = 1 - sin²θ
• cosθ = 1 + sin²θ
• cosθ = 1 - sinθ
• cos²θ = Adj/hyp

Tags

CCSS.HSF.TF.C.8

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• csc x
• sec x
• cot x
• tan x

What would be a step to prove the following:

• (1)(1)

• (1/tanx)(tanx/1)

• (sinx/cosx)(cosx/sinx)

• (cosx/sinx)(sinx/cosx)

Which of these problems would need the conjugate:

• 
• 
• 
• 

What would be your first step in this one?

• Co-function identities

• Negative Angle identities

• FOIL

• Give up and cry

If you had to verify:

tanxcotx-cos²x=sin²x,

which side would you begin with?

• The left half - it is more complicated

• The right half - it is simpler

• Either side - it doesn't matter

• HELP...I am clueless. Stop the madness

Simplify

• sin²θ

• cosθ

• tanθ

• 1- sin²θ