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The absolute value of the sine function cannot exceed 1 and so sin(a) = 312 is not possible.

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โˆ™ 2017-03-30 19:46:06
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Q: What is angle a when given sin a 312?
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How to express sin of an angle in terms of the terminal angle?

sin312 the terminal angle of 312 is equal to 48 degrees! That's all i know!

What does sin -1.46 equal?

Assuming the angle is given in radians, it is -0.9939

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The refractive index of water is 1.33 a ray is incident from water on air at an angle of incidence equal to 30 degree what is the angle of refraction in air?

nwater * sin 30=nair *sin(angle of refraction) 1.33*0.5=1*sin(angle of refraction) sin(angle of refractiob)=0.665 angle of refraction inair=41.6 degrees nwater * sin 30=nair *sin(angle of refraction) 1.33*0.5=1*sin(angle of refraction) sin(angle of refractiob)=0.665 angle of refraction inair=41.6 degrees

In triangle abc given that angle a equals 57 angle b equals 73 and ab equals 24cm find the length of ac?

The sum of the angles inside a triangle is equal to 180°. We are told that angle a is 57°, and that angle b is 73°. This tells us that angle c is is (180 - 57 - 73)°, or 50°. We are also given the length of side ab, 25cm. With that, we can use the sine rule to calculate the length of side ac: sin(b) / |ac| = sin(c) / |ab| ∴ sin(73°) / |ac| = sin(50°) / 24cm ∴ |ac| = 24cm · sin(73°) / sin(50°) ∴ |ac| ≈ 29.96cm

Is critical angle fixed?

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How do you calculate the angle if you know Sin of the angle?

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The sides and angles of a triangle are generally described using a,b,c for the three sides and A for the angle opposite side a, B for the angle opposite side b and C for the angle opposite side c. Then use the Sine Rule provided that one of the given angles is opposite the given side. a/Sin A = b/Sin B = c/Sin C

How do you construct an isosceles triangle when base and angle at the vertex is given?

First find 180 minus the vertex angle and divide that by 2 to get the other angles. Then solve the other sides by using sin(vertex angle)/base=sin(other angles)/other sides.

What is the difference between sin x and sin -1 x .?

-- sin(x) is a number. It's the sine of the angle 'x'. -- sin-1(x) is an angle. It's the angle whose sine is the number 'x'.

How do you measure the complement and supplement of an angle in trigonometry?

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What is the reference angle sin 285?

Sin(285) is a number, not an angle. The reference angle for 285 degrees is 285-360 = -75 degrees.

What is a value equal to sin 312?

That depends whether 312 is in degrees or in radians. Just open your scientific calculator (there is one included on most computers; don't forget to set it to "scientific"), select the correct angular measurement (usually degrees or radians), and do the calculation.-----If you don't have a scientific calculator you can use google: just enter sin 312 radians or sin 312 degrees.For more general expressions use the link attached below. For example, you can enter sin(312)+cos(312). This site will assume degrees in this instance but offer you the option of calculating the result for radians.

What is the base angle in the isoceles triangle whose side and altitute is given?

sin-1(a/s) where a = altitude and s = side.

What is arcsine?

The arcsine is the angle whose sine is equal to the given value. arcsine is also called sine inverse (sin-1 ) if sin 30o = 1/2 , then sin-1 1/2 = 30o

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Refractive index of a medium = speed of light in air / speed of light in medium If a ray of light passes from air into that medium then the refractive index (R.I) can be given by: R.I = sin(angle in air) / sin(angle in medium) Angle in air is the angle between the ray of light and the normal in air.

What is the relation between the angle of incidence and the angle of refraction and velocity of light?

Sin I/VI = Sin Ref/VRef

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Sin (Incident angle )/incident speed = sin(refraction angle)/refraction speed.

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What is the perimeter of a triangle when an angle of 57 degrees is opposite to a side of 14.5 inches and has another angle of 71 degrees?

The sum of tthe angles of a triangle is 180° which means the third angle is 180° - (57° + 71°) = 52° The sine rule gives: a/sin A = b/sin B = c / sin C where side a is opposites angle A, etc. The sine rule can be used to find the lengths of the other two sides when the angles are all known and one side length is known. Let angle A = 57°, then side a = 14.5 in. Let angle B = 71° and angle C = 52° Using the sine rule: a/sin A = b/ sin B → b = a × sin B/sin A Similarly, c = a × sin C/sin A → The perimeter = a + b + c = a + a × sin B/sin A + a × sin C/sin A = a(1 + sin B/sin A + sin C/sin A) = 14.5 in × (1 + sin 71° / sin 57° + sin 52° / sin 57°) ≈ 44.47 in ≈ 44.5 in