trungkienuong trungkienuong

16-08-2021
Mathematics

contestada

cos5xcosx-sin5xsinx=??????????????????

Respuesta :

cwrw238 cwrw238

17-08-2021

Answer:

cos6x.

Step-by-step explanation:

We use the identity

cosAcosB - sinAsinB = cos(A+B)

so cos5xcosx - sin5xsinx = cos(5x + x)

= cos6x.

Answer Link

Otras preguntas

Catherine is pregnant and preparing for childbirth. She knows a woman who assists in childbirth. The woman has not been to any medical school, but she is adept

Which sentence features a present participial phrase functioning as an adjective? Blushing furiously, the newcomer couldn’t believe he’d been so gullible. Fati

Which of the following is true? A) Gas atoms subjected to electricity emit bright lines of light. B) Gas atoms absorb white and emit a continuous spectrum of l

What vascular tissue is involved in the transport of starch found in fruit

a net force of 100 newton's is applied to a wagon for 5 seconds. This causes the wagon to undergo a change in momentum of

What is the only crime mentioned in the Constitution?

Because it is important to educate the will

Which of the following is an example of unsecured debt? A. Mortgage B. Car loan C. Medical bills D. Payday loan

Which of the following compounds will form an electrolyte in solution? A. MgCl₂ B. C₆H₁₂O₆ C. C₂H₅OH D. C₅H₁₂ What is the molarity of a 785 ml solution that con

In Jasper Johns's painting Summer, he incorporates which famous painting?