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Studentka2010 [4]
3 years ago
6

2 sin^2 (x) + 3 sin (x) + 1 = 0 help me find the solution

Mathematics
1 answer:
Fed [463]3 years ago
7 0

Answer:

Step-by-step explanation:

\[2~ sin^2 x+3sin x+1=0\]

\[2sin^2x+2sin x+sin x+1=0\]

2sinx(sin x+1)+1(sin x+1)=0

(sin x+1)(2 sin x+1)=0

either sin x+1=0

sin x=-1=sin 3π/2=sin (2nπ+3π/2)

x=2nπ+3π/2,where n is an integer.

or 2sin x+1=0

sin x=-1/2=-sin π/6=sin (π+π/6),sin (2π-π/6)=sin (2nπ+7π/6),sin (2nπ+11π/6)

x=2nπ+7π/6,2nπ+11π/6,

where n is an integer.

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10+x=23 Solve for the variable and show your work
Mariana [72]
10+x=23

Subtract 10 from both sides

  10 + x = 23
-10       -10
------------------
    x=13

Hope I helped!
4 0
3 years ago
Read 2 more answers
Which prism has a greater volume?
kvv77 [185]
For A, the volume is 2 x 1 x 7 = 14
for B, the volume is 3 x 3 x 2 = 18

so B has a greater volume

please give brainliest! thanks, :D
8 0
2 years ago
Can anyone help me solve this?​
Alecsey [184]

Answer:

Step-by-step explanation:

(\sqrt{z} +\sqrt{22})(\sqrt{z} -\sqrt{22})=35

Subtract both sides from 35

(\sqrt{z}+\sqrt{22} (\sqrt{z} -\sqrt{22})-35=35-35

Simplify:

(\sqrt{z})^{2} -57=0

Factor (\sqrt{z})^{2}  -57: (\sqrt{z}+\sqrt{57}) (\sqrt{z}-\sqrt{57})=0

\sqrt{z} +\sqrt{57}=0    or    \sqrt{z}  -\sqrt{57}=0

\sqrt{z} +\sqrt{57} =0: No Solution for Z

\sqrt{z} -\sqrt{57} =0: z=57

Your answer will be z=57

and No solution

8 0
2 years ago
Read 2 more answers
25) Which graph represents the equation below? ) = w+ 2 A ܠܐ 5 4 (2, 4) 3 2 1 (-2,0) -5 -4 -3 -2 -1 0 -1 x 1 2 3 4 5 -2 -3 -4 -5
victus00 [196]

Answer:

Can you attach a pic please ?

Step-by-step explanation:

6 0
3 years ago
Shade 50% of this figure, worth 16 points
KATRIN_1 [288]

Answer:

shade 10 boxes for 50%

Step-by-step explanation:

50%=50/100=1/2

1/2 of 20=10

:. To shade 50% of the boxes, 10 boxes need to be shaded

6 0
3 years ago
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