Question: In Problems 2130, use Half-angle Formulas to find the exact value of each expression. cos165

In Problems 21–30, use Half-angle Formulas to find the exact value of each expression.

cos165°

Step by Step Solution

★★★★★

3.44 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

To find the exact value of cos165 using halfangle formulas we can start by recognizing that 165 is t... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Precalculus Questions!

Q:

In Problems 2130, use Half-angle Formulas to find the exact value of each expression. cos 32 8

Q:

In Problems 2130, use Half-angle Formulas to find the exact value of each expression. sin(-)

Q:

In Problems 2130, use Half-angle Formulas to find the exact value of each expression. 7 8 csc-

Q:

In Problems 2130, use Half-angle Formulas to find the exact value of each expression. sec 15TT 8

Q:

In Problems 2130, use Half-angle Formulas to find the exact value of each expression. 9 tan- 8

Q:

In Problems 2130, use Half-angle Formulas to find the exact value of each expression. 7 8 tan-

Q:

In Problems 2130, use Half-angle Formulas to find the exact value of each expression. sin 22.5

Q:

In Problems 2130, use Half-angle Formulas to find the exact value of each expression. sin195

Q:

Use the Half-angle Formulas to find the exact value of the expression sin 3x 8 Which Half-angle formula should be used to find the exact value of the sin -- (Type an exact answer in terms of x.) ?...

Q:

In Problems 2128 use sum, difference, product, or half-angle formulas to find the exact value of each expression. 335 sin(cos-1

Q:

(a) List the four classifications of steels. (b) For each, briefly describe the properties and typical applications.

Q:

Steel Hat Corporation manufactures metal hard hats for on-site construction workers. Recently, management has tried to raise productivity to meet the growing demand from the real estate industry. The...