00:01
Trigonometric ratios for angle a.
00:02
To do so, we're going to need to know our value of our hypotenuse.
00:06
So i'm going to take 8 squared plus 10 squared will be our hypotenuse squared.
00:11
64 plus 100 is going to be 164, will be our hypotenuse squared.
00:17
And we're going to have h is going to be, let's say we can have decimals, so i'm going to get the square root of 164, and i'm going to say that's going to be 12 .81.
00:30
So that means that the sine of a is going to be 10 over 12 .81.
00:41
The cosine of a is going to be 8 over 12 .81, and the tangent of a is going to be 10 over 8.
00:50
Cosecant is going to be the reciprocal.
00:55
Secant is going to be the reciprocal, and cotangent will be the reciprocal...