Question

value of cos theta in a easy way ​

Answer 1

Answer:

Divide your sine values by the cosine values to fill the tangent column. Simply speaking, tangent = sine/cosine. Thus, for every angle, take its sine value and divide it by its cosine value to calculate the corresponding tangent value. To take 30° as an example: tan 30° = sin 30° / cos 30° = (√1/2) / (√3/2) = 1/√3.

Answer 2

Step-by-step explanation:

value of cos theta can be found from the following way-

draw a unit circle in x-y plane i.e. draw a circle with radius = 1.

now draw the angle theta from origin

the line (containing angle theta) will intersect the unit circle

find the coordinates of that point.

the x coordinate is cos theta

and the y coordinate is sin theta