Precalculus Trig Identities

According to the reciprocal identities, what is csc(x) equivalent to?

• 1/sin(x)

• 1/tan(x)

• sin(x)

• 1/cos(x)

Tags

CCSS.HSF.TF.C.8

According to the Pythagorean Identities, please select the correct solution

• csc² x

• cot² x

• sin² x

• sec² x

Tags

CCSS.HSF.TF.C.8

According to the negative angle identities: cos(-y)=?

• 1

• cos(x)

• cos(y)

• Who knows...I have missed so many already.

Tags

CCSS.HSF.TF.A.4

According to the tangent and cotangent identities...

• csc x

• sec x

• cot x

• tan x

Tags

CCSS.HSF.TF.C.8

Which of these problems would need the conjugate:

• 
• 
• 
• 

What would be the first step here?

• co-function identities

• Cancel the sines

• Distribute

• Pythagorean identities

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

If you had to simplify this, which category of identities would you use?

tan(x)csc(x)

• Co-function

• Tangent & Cotangent

• Pythagorean

• Negative Angle

Simplify

• sin²θ

• cosθ

• tanθ

• 1- sin²θ