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one over the square root of 2 or 0.850903525

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โˆ™ 2008-10-04 21:54:14
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Maria Sรกnchez

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โˆ™ 2021-04-20 20:01:06

What is Sin 45?

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Maria Sรกnchez

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โˆ™ 2021-04-20 20:01:32

What is Cos 30?

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Anonymous

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โˆ™ 2020-07-21 06:08:37

1/square root of 2

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Q: What is sin 45?
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Find out value of sin 45 cos 45 - sin 230?

Assuming that the angles are all stated in degrees: sin(45) = cos(45) = 1/2 sqrt(2) sin(45) cos(45) = (1/2)2 x (2) = 1/2 sin(230) = - 0.7660444 sin(45) cos(45) - sin(230) = 0.5 + 0.7660444 = 1.2660444 (rounded)


Cos 45 degrees equals sin?

cos(45) = sin(45) You can see this as follows: imagine a circle with radius 1. The point on the circle with angle 45 degrees, lies on the line y=x, equally far from the x-axis (cos) as the y-axis (sin). The angle for both must be 45, because x and y are orthogonal: 90 deg, so if the angle with x is 45, then the angle with y must be 90-45=45. So: for this point, both angles are 45, and the distance to x (cos) is equal to the distance to y (sin). Therefore, cos(45) = sin(45). Additionally, cos(45) = sin(45+90) = sin(45+360n) = sin(135+360n) with n integer.


A 45-45-90 triangle has the hypotenuse of 1. what is the length of one of its legs?

sin theta = opp/hyp sin 45 = opp/1 opp = sin 45 = sqrt(2)/2 ~= 0.7071


Does tan 45 degrees and sin 45 degrees equal trig values?

They are both trig values, but not equal. Tan 45 is 1 and sin 45 is 0.7071


Fill in the blank Cos equals Sin 45?

45


Find the value of a if tan 3a is equal to sin cos 45 plus sin 30?

If tan 3a is equal to sin cos 45 plus sin 30, then the value of a = 0.4.


Sin x plus cos x?

sin(x) + cos(x) = sqrt(2) · sin(45°+x)


What is sin squared at 45 degree?

It is 1/2


If angle A is 60 degrees angle B is 45 degrees angle C is 75 degrees and the length of side AC is 10 units then what is the length of side AB?

This problem can be solved using the Sine Rule :a/sin A = b/sin B = c/sin C 10/sin 45 = AB/sin 75 : AB = 10sin 75 ÷ sin 45 = 13.66 units (2dp)


What is the cot of a 45 degree angle?

1 cot(theta)=cos(theta)/sin(theta) cos(45 degrees)=sqrt(2)/2 AND sin(45 degrees)=sqrt(2)/2 cot(45 deg)=cos(45 deg)/sin(deg)=(sqrt(2)/2)/(sqrt(2)/2)=1


How will the value of sin 35 determine?

to find sin 35 here we take the angle = x=15 then 3x=45 , 4x=60 then 4x-3x=60-45 then by putting sin on rhs we will get cos 35 and sin 35 hope it helped you


At what angle measure are the sin and the cosine equal?

45 degree


What is the value of sin 45?

= 1/sqrt(2) = 0.7071


What is sin 45 degrees?

1/square root 2


What is six trigonometric ratios of 45 degrees?

sin(45) = cos(45) = 1/sqrt(2) tan(45) = cot(45)= 1 csc(45) = sec(45) = sqrt(2)


What is exact value of sin75?

sin(75) = sin(45 + 30) = sin(45)*cos(30) + cos(45)*sin(30) = [1/sqrt(2)]*[sqrt(3)/2] + [1/sqrt(2)]*[1/2] = 1/[2*sqrt(2)]*[sqrt(3) + 1] that is [sqrt(3) + 1] / [2*sqrt(2)]


How do you determine the leg length of a dodecagon circumscribed within a circle with a known radius?

If you mean "inscribed within", the formula is r/(√2 + √6). To see why this is true, consider a "slice" of the dodecagon - a triangle with corners at two connected corners of the dodecagon and at the center of the circle. Its sides are r, r, and s (the length of a side); the angles are 75, 75, and 30. By the Law of Sines, we have that s = r*sin(30)/sin(75). sin(75)=sin(30+45)=sin(30)cos(45)+cos(30)sin(45). We know the values for sine and cosine of 30 and 45; when we substitute them into the sin(30)/sin(75), we get 1/(√2 + √6). This gives us the formula above.


What is A force of 8 N that is applied 0.5 m from a doors hinge makes an angle of 45 with the door What is the torque exerted by the force?

T=f*d*sin(of the angle) torque= 8*.5*sin(45) =2.828 NM


What is the sin of 105 degrees?

sin 105 = sin (60+45) = sin60cos45 + cos60sin45sin 105 = ((sqrt(3)/2)((sqrt(2)/2)) + ((1/2)((sqrt(2)/2)))sin 105 = (sqrt(6) + sqrt(2)) / 4


Find the value of 3 sin 40 4 cos 20 - tan 45?

6.25


What is sin cos tan csc sec cot of 30 45 60 degrees?

Sin(30) = 1/2 Sin(45) = root(2)/2 Sin(60) = root(3)/2 Cos(30) = root(3)/2 Cos(45) = root(2)/2 Cos(60) = 1/2 Tan(30) = root(3)/3 Tan(45) = 1 Tan(60) = root(3) Csc(30) = 2 Csc(45) = root(2) Csc(60) = 2root(3)/3 Sec(30) = 2root(3)/3 Sec(45) = root(2) Sec(60) = 2 Cot(30) = root(3) Cot(45) = 1 Cot(60) = root(3)/3


Solve sin 5x plus sin x equals 0?

Assuming the angles are expressed in radians:sin(5x) + sin(x) = 0∴ sin(5x) = -sin(x)∴ 5x = x + π∴ x = π/4On the other hand, if your angles are in degrees, then the answer would be:sin(5x) + sin(x) = 0∴ sin(5x) = -sin(x)∴ 5x = x + 180∴ x = 180°/4∴ x = 45°


What if the sine of an angle is 0.707 what is value of that angle in degrees?

sin-1(0.707) = 44.99134834 or about 45 degrees


X is acute and sin x equals cos x Find cos?

x = 45 degrees sin(x) = cos(x) = 1/2 sqrt(2)


What is sin-cos?

Sin is sine. Cos is cosine. http://en.wikipedia.org/wiki/Sine_curve http://en.wikipedia.org/wiki/Cosine_curve In terms of trigonometric identities sin2A=2sinAcosA cos2A=cos2A-sin2A sin2A-cos2A=2sinAcosA-cos2A+sin2A === === sin(A) - cos(A) = sqrt(2)sin(A-45)