4 sin(<em>x</em>) + 9 cos(<em>x</em>) = 0
4 sin(<em>x</em>) = -9 cos(<em>x</em>)
tan(<em>x</em>) = -9/4
<em>x</em> = arctan(-9/4) + <em>nπ</em> … … … (in radians)
or
<em>x</em> = arctan(-9/4) + 180<em>n</em> ° … … … (in degrees)
where <em>n</em> is any integer.
I'm guessing you're solving for <em>x</em> over some domain, probably 0° ≤ <em>x</em> < 360°. In that case, you would have two solutions for <em>n</em> = 1 and <em>n</em> = 2 of
<em>x</em> ≈ 113.96° and <em>x</em> ≈ 293.96°
Answer:
I didn't want to type it, but it is on the image.
Step-by-step explanation:
39
You find the area by multiplying the length times the height which is what I did 13 x 3 = 39
17.49
A=πr2
d=2r
d=2A
π=2·240.26
π≈17.49013
This is incomplete. What do you need to find? There's not enough information to figure out what to do.
