nurzierah27 nurzierah27
  • 03-11-2019
  • Mathematics
contestada

Prove, cotx -tanx= 2 cot2x

Respuesta :

2002hemal
2002hemal 2002hemal
  • 03-11-2019

Step-by-step explanation:

cotx- tanx= 2cot2x

L.H.S

cosx/sinx- sinx/cosx

(cos²x- sin²x)/ sinxcosx

[ cos²x-(1-cos²x)]/sinxcosx

( 2cos²x-1)/sinxcosx

2cosx/ 2sinxcosx

2cot2x

Answer Link

Otras preguntas

Make up your own multiplication and division problem and solve them
How many different ways can eight-notes be written? HELP‼️‼️
Question: How can physical inactivity impact your health?This activity assesses your understanding of Activity & Nutrition concepts.Instructions: Answer the
What is an example of an internal threat?
Help me please I will give 20 points if you answer correctly!
A recipie for homemade modeling clay includes 1/3 cup salt for every cup of water. Identify the constant of proportionality
Can someone pleeaase help me....Ixl 6th grade sos
Find value of X. plz help i’ll give brainliest
Interdependence is how living and non-living things depend on each other. True or False​
_______insurance is a policy that protects the financial responsibility of owning a vehicle.