answersLogoWhite

0


Best Answer

2 sin(x) + 1 = 0

2 sin(x) = -1

sin(x) = -1/2

x = 210° and 330°

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you find theta if 2sin theta plus 1 equals 0 and 0 is less than or equal to theta which is less than 2pi?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Other Math

How do you find smallest positive value of theta to the nearest degree. When sin theta equals 0.3455?

you have to do the arcsin which is sin-1 on your calculator. i have not met anyone in my life who can do sin or arcsin in their head. not even my college teachers. your theta is equal to 20degrees


How do you find the theta of a triangle?

The answer depends on what theta represents!


If tansqtheta plus 5tantheta0 find the value of tantheta plus cottheta?

tan2(theta) + 5*tan(theta) = 0 => tan(theta)*[tan(theta) + 5] = 0=> tan(theta) = 0 or tan(theta) = -5If tan(theta) = 0 then tan(theta) + cot(theta) is not defined.If tan(theta) = -5 then tan(theta) + cot(theta) = -5 - 1/5 = -5.2


What degree is 8 percent?

Approximately 4.57 degrees If you mean what degree angle yields an 8% grade, then you would solve the problem as follows: Construct a right triangle with one leg equal to 8 (the leg opposite the angle whose measurement you are trying to find) and the other leg equal to 100. The grade of the incline is then 8/100=8%. If the measure of the angle is theta, then tan(theta)=8/100, and theta=arctan(8/100), or approximately 4.57 degrees


When do i use negative sin cos or tan?

The inverse (negatives) of sine, cosine, and tangent are used to calculate the angle theta (or whatever you choose to name it). Initially it is taught that opposite over hypotenuse is equal to the sine of theta sin(theta) = opposite/hypotenuse So it can be said that theta = sin-1 (opp/hyp) This works the same way with cosine and tangent In short the inverse is simply what you use when you move the sin, cos, or tan to the other side of the equation generally to find the angle

Related questions

Should we find cos theta if sec theta equals -10?

No.


If tan Theta equals 2 with Theta in Quadrant 3 find cot Theta?

Cotan(theta) is the reciprocal of the tan(theta). So, cot(theta) = 1/2.


How do you find smallest positive value of theta to the nearest degree. When sin theta equals 0.3455?

you have to do the arcsin which is sin-1 on your calculator. i have not met anyone in my life who can do sin or arcsin in their head. not even my college teachers. your theta is equal to 20degrees


How do you find theta if tan theta equals 1 and 0 is less than or equal to theta which is less than 2pi?

tan(theta) = 1 then theta = tan-1(1) + n*pi where n is an integer = pi/4 + n*pi or pi*(1/4 + n) Within the given range, this gives theta = pi/4 and 5*pi/4


Find all angles in the interval 0 360 satisfying the equation cos theta equals 0.7902?

cos(theta) = 0.7902 arcos(0.7902) = theta = 38 degrees you find complimentary angles


Find theta if theta is 0 deg theta 360 deg and 2 sin theta plus 1 equals 0?

2 sin (Θ) + 1 = 0sin (Θ) = -1/2Θ = 210°Θ = 330°


If A equals B find alpha when theta equals 60 degree 90 degree?

You should supply more information.


How do you find tan-theta when sin-theta equals -0.5736 and cos-theta is greater than 0?

-0.5736


If tan y equals to x where y is acute find 2 sin y in terms of x?

2sin(y) = 2x/sqrt(1+x^2)


How do you find the theta of a triangle?

The answer depends on what theta represents!


How would you find possible values for theta if SECx equals 5pie divided by 4?

1.25


If costheta equals frac2sqrt6 in Quadrant 1 then find tantheta?

tan theta = sqrt(2)/2 = 1/sqrt(2).