sec of theta
r/x
The term sec of theta refers to the secant function of an angle theta in trigonometry. The secant function can be defined as the reciprocal of the cosine function.
Mathematically, the value of sec theta is given by the following formula:
sec(theta) = 1/cos(theta)
In words, sec theta is equal to one divided by the cosine of the angle theta.
The secant function is defined for values of theta where the cosine function is not zero. The range of the function is from negative infinity to negative one and from one to positive infinity. The function has vertical asymptotes at odd multiples of pi/2.
To find the value of sec theta, you need to know the value of the angle theta in radians or degrees. You can use a scientific calculator or reference table to look up the value of the cosine of the angle and then take the reciprocal of that value to find the value of sec theta.
For example, if theta is equal to 30 degrees, then the value of sec theta can be found as follows:
cos(30 degrees) = 0.866
sec(30 degrees) = 1/cos(30 degrees) = 1/0.866 = 1.1547
Therefore, sec of theta is 1.1547 for theta = 30 degrees.
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