Answer:
Step-by-step explanation:
Let
x-----> the shaded area
we know that
Because the complete circle represent the
and
solve for x
Multiply by both sides
Divide by both sides
----> fraction irreducible
sin x = sqrt(3)/2
Answer:
Step-by-step explanation:
We are given that
We have to find all solutions of the given equation
We know that
sin x is positive then the value of sin x will lie in I quadrant and II quadrant.The value of sin x is negative in III and IV quadrant .
We are given that sin x is positive then the solution will lie in I and II quadrant only.Therefore, the solution of sin x will not lie in III and IV quadrant .
...(I equation )and ...(II equation)
In II quadrant change into
Cancel sin on both side of equation I
Then, we get
...(II equation )
Cancel sin on both side of equation II
Then we get
Hence, the solutions of equation are
The solutions of the equation are:
x = 60 degrees
x = 120 degrees
x = 420 degrees
x = 480 degrees, and so on.
We have,
The solutions to the equation sin(x) = √3/2 are any angles where the sine of the angle is equal to √3/2.
So,
sin 60 = √3/2
sin 120 = sin (π - 60) = sin 60 = √3/2
In trigonometry 180 is written as π.
Since (π - 60) is in the secondquadrant sin 60 is positive.
sin 420 = sin (360 + 60) = sin 60 = √3/2
In trigonometry 360 is written as 2π.
Since (2π + 60) is in the Firstquadrant sin 60 is positive.
Similarly,
sin 480 = sin (2π + 120) = sin 120 = sin (π - 60) = sin 60 = √3/2
Thus,
The solutions of the equation are:
x = 60 degrees
x = 120 degrees
x = 420 degrees
x = 480 degrees, and so on.
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Answer:
25π/6 yd
Step-by-step explanation:
∠DCE = 110°, so arc DFE = 360° − 110° = 250°.
In radians, that's 250° × π/180° = 25π/18.
Arc length is:
s = rθ
s = (3 yd) (25π/18)
s = 25π/6 yd
Answer:
the answer is D
Step-by-step explanation:
took the test
Answer:
XY ≈ 9.2 m
Step-by-step explanation:
using the cosine ratio in the right triangle
cos58° = = = ( multiply both sides by XY )
XY × cos58° = 4.9 ( divide both sides by cos58° )
XY = ≈ 9.2 m ( to the nearest tenth )