Clancy
Clancy
03-08-2016
Mathematics
contestada
(sin3t+cos3t)/(cos3t-sin3t)=? Please help
Respuesta :
caylus
caylus
03-08-2016
Hello,
Let's assume 3t=a.
[tex] \dfrac{sin(a)+cos(a)}{cos(a)-sin(a)} = \dfrac{(cos(a)+sin(a))^2}{cos^2(a)-sin^2(a)}\\\\ = \dfrac{1+2sin(a)cos(a)}{cos(2a)}= \dfrac{1+sin(2a)}{cos(2a)} with\ a=3t[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 94+ )
Otras preguntas
can two squares of different sizes have the same perimeter
What are the four steps of a home inspector
a triangular shape has an area of 70 square inches the height is 8 and three fourths what is an equation for this answer
Analogies: mystery : clue :: eraser : a. house b. key c. window d. open habit : custom :: extravagant : a. miserly b. extraordinary c. lavish d. crazy
. Which of the following is an example of a proper fraction? A. 11/10 B. 6/6 C. 15/2 D. 4/17
What is the degree of comparison of the underlined adjective in the sentence? Mount Everest is the tallest mountain in the world. A. positive B. comparative
why is alcohol classified as a drug?
If salt is dissolved in water, water serves as the: a. solute. b. solvent. c. dissolved medium. d. none of the above
Which is the primary cause of food-borne illness? Mercury, Microbes,lead, prions
Barbarians from modern day Denmark, Sweden, and Norway