veronikarossi veronikarossi
  • 06-02-2017
  • Mathematics
contestada

Prove the identity:

cos(x-y)/cos x sin y = cot y + tan x

Respuesta :

LammettHash
LammettHash LammettHash
  • 06-02-2017
[tex]\dfrac{\cos(x-y)}{\cos x\sin y}=\dfrac{\cos x\cos y+\sin x\sin y}{\cos x\sin y}=\dfrac{\cos y}{\sin y}+\dfrac{\sin x}{\cos x}=\cot y+\tan x[/tex]
Answer Link

Otras preguntas

What is the reciprocal of 7/9 it’s a fraction by the way
Julie wants to make 800 g of a 15% alcohol solution by mixing a 20% solution and a 4% solution. How many grams of each kind does she need?
56÷(7-9)^3 -24/23-5×4​
What is (-5) the 2 is an exponent just so you know
Caspian Sea Drinks is considering the production of a diet drink. The expansion of the plant and the purchase of the equipment necessary to produce the diet dri
what song goes whoooooo Iiiiii smoooooooooke ​
Which type of laws are passed by Congress and affect all states? federal laws or state laws
how have humans influenced their environment for ages?​
does anyone know this?. can u help me? lol
3. What is height of the cylinder?