Divide both sides by cos2x.
You will get:
tan2x = 2
2x = 63.435 degrees or 243.435 degrees
x = 31.72 degrees or 121.72 degrees
Solve the equation sin2x=2cos2x, for 0 degrees <=x<=180 degrees
2 answers
Sin2x=2cos2x
Diving both sides by cos2x,we get
tan2x=2
Then, what's tan2x?
It's ; 2tanx/1-tan²x =2
Cross multiply,we get
-2tan²x+2tanx+2=o
Diving by 2 the entire equation,
-Tan²x+tanx+1=0
That's where I got stuck from 😢
Diving both sides by cos2x,we get
tan2x=2
Then, what's tan2x?
It's ; 2tanx/1-tan²x =2
Cross multiply,we get
-2tan²x+2tanx+2=o
Diving by 2 the entire equation,
-Tan²x+tanx+1=0
That's where I got stuck from 😢
3 answers