BirbalRai BirbalRai
  • 15-08-2019
  • Mathematics
contestada

((sinA.cosB+cosA.sinB)^2)+(cosA.cosB-sinA.sinB)^2=1answer please ​

Respuesta :

kosala1478
kosala1478 kosala1478
  • 15-08-2019

Step-by-step explanation:

((sinA.cosB+cosA.sinB)^2)+(cosA.cosB-sinA.sinB)^2=1

LHS

=(sin 2A)^2 + (cos 2A)^2

=sin^2 2A + cos ^2 2A

=1

=RHS

(because sin^2#+cos^2#=1)

Answer Link

Otras preguntas

which one of the following can be the best classified as fundamental quantity A.forceb.time c.velocity D.acceleration
English help plz! How can you make this sentence grammatically correct? Hes fishing at the pier.
Describe effectively communication strategies for gathering information and education patients and the importance of a applying them
Can someone please help me answer #10?
Who first discover the USA
i need your help please
When a physical need has been achieved to a drug or alcohol, this is referred to as ________________.addiction
what is the safe order in writing an essay
Why did antislavery activists angelina grimké, sarah grimké, and maria stewart encounter hostility in the north? a. no one was receptive to the substance of the
ABCD is a rectangle. Use the diagram to answer the questions. The length of AB is . The length of BC is . The length of AC is