when we taking the right angle triangle,in this when taking the 30 degrees of one side ,then the ratio of the opposite side to the hypotenuse will 0.5 always.and this is called sin30 in trigonometry and...............this is answered by sreenivassn from narayana engineering college,gudur.
Sine(30) = 0.5 or 1/2
With a protractorif it is a computer generated pie chart, find the fraction, and divide into 360
what trapezoid
Find the value of Cos1o.cos2o.cos3o.cos4o......cos179o.Ans: Cos90o=0Therefore, Cos1o.Cos20,Cos30,cos40......Cos900.......Cos1790=0
1/(tangent of angle)
The answer is 1/2.
sin-30 = (-1) x 1/(square root of 2) -sin30 = -(1/square root of 2) They are equal
54 inches Because: sin30=x/9 sin30 is the degrees that makes the apothems angle of depression and 9 is the radius.
To simplify the expression sin(30°) cos(90°) sin(90°) cos(30°), we first evaluate the trigonometric functions at the given angles. sin(30°) = 1/2, cos(90°) = 0, sin(90°) = 1, and cos(30°) = √3/2. Substituting these values into the expression, we get (1/2) * 0 * 1 * (√3/2) = 0. Therefore, the final result of sin(30°) cos(90°) sin(90°) cos(30°) is 0.
cos60 + sin30 = tan90
sin30 is 1/2 or 0.5
Sine(30) = 0.5 or 1/2
sin30=1/2c0s60=1/2
2*7 = 14 units (the sin of 30° is 0.5 or 1/2 and 7/0.5 = 14) Sin30 = 7/H so H = 7/sin30 = 7/0.5 = 14 (third side is 12.12)
To evaluate sin30 plus cos60-2tan45, we start by finding the exact values of sin30, cos60, and tan45. sin30 = 1/2, cos60 = 1/2, and tan45 = 1. Substitute these values into the expression: 1/2 + 1/2 - 2(1) = 1/2 + 1/2 - 2 = 1 - 2 = -1. Therefore, sin30 plus cos60-2tan45 equals -1.
basic algebra, group like terms Sin30-Sin1=Sin(30-2)=Sin(28)
7/sin30 ie 14 units