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Step-by-step explanation:
this I the wed go on it and you will get your answer
4 cos² x - 3 = 0
4 cos² x = 3
cos² x = 3/4
cos x = ±(√3)/2
Fixing the squared cosine doesn't discriminate among quadrants. There's one in every quadrant
cos x = ± cos(π/6)
Let's do plus first. In general, cos x = cos a has solutions x = ±a + 2πk integer k
cos x = cos(π/6)
x = ±π/6 + 2πk
Minus next.
cos x = -cos(π/6)
cos x = cos(π - π/6)
cos x = cos(5π/6)
x = ±5π/6 + 2πk
We'll write all our solutions as
x = { -5π/6, -π/6, π/6, 5π/6 } + 2πk integer k
Answer:
around 4.1
Step-by-step explanation:
Using Pythaogrean theorem we get <em>sqrt 32</em> or <em>4sqrt2 </em>for the diagonal of the square.
To get x we can use Pythagorean theorem again to set up an equation,
32 + x^2 = 49
This gives us x = <em>sqrt17,</em> which is approximately 4.1231 or around 4.1
Answer:
<em>Answer</em><em>:</em><em>0</em><em>0</em>
If any individual factor on the left side of the equation is equal to 00, the entire expression will be equal to 00.
b=0b=0
3b−5=03b-5=0
Set the first factor equal to 00.
b=0b=0
Step-by-step explanation:
The result can be shown in multiple forms.
Exact Form:
b=0,53b=0,53
Decimal Form:
b=0,1.¯6b=0,1.6‾
Mixed Number Form:
b=0,123b=0,123
<em>#Brainly</em>
