tigerstar34 tigerstar34

08-12-2017
Mathematics

contestada

Which expression is equivalent to (sin x + 1)(sin x − 1)?
A. cos2x
B. -cos2x
C. cos2x + 1
D. cos2x − 1
E. -cos2x + 1

Respuesta :

08-12-2017

Please be careful in the future regarding the options. These options look like cos of 2x, rather than cos(squared) of x.

The answer is B) -cos²(x)

(sin(x) + a) (sin(x) - a) = -cos²(x)

Answer Link

dhevannnyahhh dhevannnyahhh

27-05-2021

Answer:

B.) -cos²(x)

Explanation:

PLATO

Answer Link

Otras preguntas

discribe how connective tissue is associated with a skeletal muscle

he thought the U.S should have all of Oregon territory even if it meant war with britain

the states can ask the Department of Health and Human Services for Grants to pay for

one of the negative aspects of using nuclear power as an alternative energy source is

Factor completely 4u^2-28u+49

A therapist at a free university clinic treats elementary school children with behavior problems who are referred by a social service agency. She is also a doct

The price of a ticket to the circus this year is 10% more than the price of a ticket to the circus last year. If the variable t represents the ticket price for

Dominant traits include

he thought the U.S should have all of Oregon territory even if it meant war with britain

Solve 5x+2y=7 10x+4y=14