kayp1love kayp1love

02-03-2017
Mathematics

contestada

How to verify identities using sum and difference?

Respuesta :

kaitlynj3481 kaitlynj3481

02-03-2017

use a sum or difference identity to find the exact value of cos without a calculator. to work this, we look at the 75° to see if its the sum or difference of any angles from our reference triangles.now plug in values from your reference triangles.

Answer Link

Otras preguntas

HELP 10 POINTS!!!!!!!!!!!! ONE QUESTION!!!!!!! Gross profit by department appears on the: income statement. statement of cash flows. statement of retained earni

Contamination of injection devices is limited to the needle and removing the needle makes the syringe safe for reuse true or clause

In scalene triangle abc, m∠b=45° and m∠c=55°. what is the order of the sides in length, from longest to shortest?

what pushed the US into World War I

What are the solutions of the quadratic equation below? 2x2 - 2x - 9 = 0

sediments deposited in layers eventually form what kind of rock.

The amount of matter that makes up an object is its

A calorimeter contains 20.0 mL of water at 15.0 ∘C . When 1.50 g of X (a substance with a molar mass of 76.0 g/mol ) is added, it dissolves via the reaction X(s

What is paying taxes is an example of? A. personal responsibility B. a civic duty C. civic engagement D. voluntary citizen participation E. personal e

What is the value of x?