Find the exact value using the Sum & Difference Identities and the unit circle: cos 75o.

Find an exact value for 2 sin 22.5o cos 22.5o.

Sexual dimorphism is the term provided to those animals that are almost identical to each other, and you cannot tell the difference in sexes unless you look for the sexual organs.

It is unknown where viruses came from, but what is known is that viruses can replicate on their own and never die.

Find an exact value for cos 2 22.5o – sin 2 22.5o.

(Sum and Difference Identities)

 Find an exact value for

Which type of root is shown in this cross section? RanunculusRoot.jpg

Label E from the root model bellow [BLANK-1] root model.jpg

Find the exact value of cot -1 (-1) in radians.