The answer I got was y=-12x+43.
Hope this helps!
Answer:
<h2>
</h2>
Option C is the correct option
Step by step explanation
Reduce the fraction with 11
Simplify the expression
Simplify the radical expression
Hope this helps...
Good luck on your assignment..
Answer:
c. The solution to a system of equations is the point or points where they intersect
Answer: 20 minutes
Step-by-step explanation:
She has 45 mins to complete her writing paper.
She spends: 
minutes to plan her paper.
She spends: 
minutes writing rough drafts.
How much time left does she have?
Simplify the fraction.
So she has approximately,
minutes.
Answer:
Correct option is
B
0
D
−1
sinx+sin2x+sin3x
=sin(2x−x)+sin2x+sin(2x+x)
=2sin2xcosx+sin2x [ by using sin(A+B)=sinAcosB+sinBcosA and sin(A−B)=sinAcosB−sinBcosA ]
=sin2x(2cosx+1)........(i)
cosx+cos2x+cos3x
=cos(2x−x)+cos2x+cos(2x+x)
=2cos2xcosx+cos2x [By using cos(a−b)=cosa⋅cosb+sina⋅sinb and cos(a+b)=cosa⋅cosb−sina⋅sinb]
=cos2x(2cosx+1).....(ii)
∴(sinx+sin2x+sin3x)
2
+(cosx+cos2x+cos3x)
2
=1
sin
2
2x(2cosx+1)
2
+cos
2
2x(2cosx+1)
2
=1.......[From(i)(ii)]
⇒(2cosx+1)
2
=1
⇒2cosx+1=±1
∴cosx=0or−1
