KaseyT
03.08.2020 •
Mathematics
How would you verify the trigonometric identity 2x = 2sinx cosx
Solved
Show answers
More tips
- F Family and Home What Kind of Wedding to have After 11 Years of Marriage?...
- C Computers and Internet How to Top Up Your Skype Account Without Losing Money?...
- H Health and Medicine How does childbirth happen: everything future mothers need to know...
- H Health and Medicine What Are the Best Vitamins? A Scientific View on Vitamin Supplements...
- A Auto and Moto How to Deregister a Car in Moscow?...
- A Auto and Moto What Is the Cost of Customs Clearance for a Car in Russia?...
- A Auto and Moto How to choose the right drive for your BMW...
- H Health and Medicine 10 Tips for Avoiding Vitamin Deficiency...
- L Leisure and Entertainment Mysteries of the Name Vyacheslav Dobrynin...
- H Health and Medicine What makes Graves’ disease dangerous?...
Answers on questions: Mathematics
- M Mathematics Help whit number 6 please! Really fast !!...
- M Mathematics Write the absolute value equation if it has the following solutions hint: your equation should be written as |x-b|=c here b and c are some numbers two solutions x= 2.5,x=-3.5...
- M Mathematics Which angle number represents an angle vertical to ZUXR? T X1 R 3/2 S Y 4 5 U W...
- M Mathematics Anyone wanna zo om with me at 1 am EST time ?...
- M Mathematics Chloe s bookshelf has 6 books by Smith and 8 books by Jones. If she removes 4 books at random, what is the probability of removing 2 by each author?...
- M Mathematics Claire has 8 cards: 4 red cards and 4 blue cards. She draws 3 cards from the set at random. What is the probability that all 3 cards are red?...
- M Mathematics Plzzzzzzzz helpppppppppopoppoopoloool...
- M Mathematics Evaluate the power: (−3)^4 A. 81 B. -81 C. 243 D. -331...
- M Mathematics Find the Circumference...
- M Mathematics The adult dosage of a medication is 15mg per day. What is the pediatric dosage of the same medication for a child weighing 52pounds?...
Ответ:
Step-by-step explanation:
Hi, there!!
I hope you mean sin2x=2sinx . cosx
so, let's begin in a simple way; by adding, alright:
sin2x= sin(x+x)(as 2x=x+x).
now, let's use compound formula for sin,
so, we get:
sin (x+x)= sinx.cosx + cosx. sinx (as sin(A+B)=sin A. cosB + cosA . sinB)
or, sin (x+x)=2sinx.cosx (adding both).
Therefore, sin 2x = 2sinx. cosx.
Hope it helps..
Ответ:
Step-by-step explanation:
2x = 2sinx cosx is not an identity. An identity is "always true," whereas a conditional equation is true only for specific value(s) of the unknown. Double check to ensure that you have copied down this problem correctly.
Ответ:
Step-by-step explanation: