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

Despite growing numbers, minority groups in the US continue to face

round 76340 to the nearest thousand

Amphibians can breathe through their skin. True False

how many feet does 5 yards equal

What groups were excluded from this widening of political opportunity? Why?

Why would a freedman agree to become a sharecropper?

The complex numbers corresponding to the endpoints of one diagonal of a square drawn on a complex plane are 1 + 2i and -2 – i. What are the complex numbers cor

A skier needs to buy new ski poles during a ski trip to Utah. The price of the poles is $24 and the sales tax is 4.7%. What is the total cost of the poles, roun

how many feet does 5 yards equal

David made 30 cups of tea per hour. Andrew made 35 cups of coffee per hour. This week David made an additional 10 cups of tea. Write an expression that represen