The answer to question
Find the value of x
A.12
B.4
C.9
D.14
is c 9
Yo sup??
we can apply trigonometric ratios here
cos45=BC/n
BC=n*cos45
=n*1/√2
=n/√2
=n√2/2
Therefore the correct answer is option D
Hope this helps
Make the equation a little more descriptive
Answer:
General solution
<em> θ =</em><em></em>
<em>Put n=1 </em>
<em> θ</em> = 210°
put n =2
<em> θ</em> = 330°
put n=3
<em> θ</em> = 270°
Step-by-step explanation:
<u><em>Explanation:-</em></u>
<em>Given equation </em>
<em> sin 2θ cosθ + cos 2θ sinθ = -1 </em>
<em> we know that </em>
<em>Sin (A+B) = sin A cos B +Cos A sin B </em>
<em> sin( 2θ+θ) = sin (180+90)</em>
<em> = </em><em></em>
<em> sin 3θ = sin (3π/2)</em>
<em>General solution of sinθ = sinα </em>
<em> θ = 2 n π ±α</em>
<em> 3θ = 2 n π ±3π/2</em>
<em> θ =</em><em></em>
<em> θ =</em><em></em>
<em>Put n=1 </em>
<em> θ=</em> = 210°
put n =2
<em> θ=</em> = 330°
Put n=3
<em> θ=</em> = 270°
Answer:
the X box one
Step-by-step explanation:
X>moon>star>heart>circle