Sorry it's my first time using this site and I'm still learning how to get around here.BvU said:Hello Alice,
Not the way things go, here in PF : see guidelines
To get started: do you know what ##\sec\theta## is ?
Alice Shield said:
Secant is a trigonometric function that is the reciprocal of cosine. It is represented as sec(theta) and is equal to 1/cos(theta).
To find sec(theta) when sin(theta) is given, you can use the identity sec(theta) = 1/cos(theta). You will first need to find the value of cos(theta) using the Pythagorean Identity, then take the reciprocal of that value to find sec(theta).
If tan(theta) is given, you can use the identity sec(theta) = 1/cos(theta). You can find the value of cos(theta) using the Pythagorean Identity, then take the reciprocal of that value to find sec(theta).
Yes, you can use the Pythagorean Identity, which states that sin^2(theta) + cos^2(theta) = 1, to find the value of cos(theta) when sin(theta) or tan(theta) are given. Then, you can use the identity sec(theta) = 1/cos(theta) to find sec(theta).
Yes, you can also use the identity sec(theta) = 1/cos(theta) to find sec(theta) when sin(theta) and tan(theta) are given. You can also use the unit circle and the trigonometric ratios to find the value of sec(theta).