Law of cosines solve for angle

Minus two times 12 times nine, times the cosine of 87 degrees. And this is going to be equal to, let's see, this is 225 minus, let's see, 12 times nine is 108. 108 times two is 216. Minus 216

Solve My Task
Deal with mathematic questions
Track Improvement
Get support from expert tutors
Your Question? We Answer!

Using the Law of Cosines to Find an Unknown Angle

The Law of Cosines states: c2 = a2 + b2 - 2ab cosC In which c is the side across from angle C. Remember that the Law of Cosines works for any triangle, not just right triangles. In the last
Determine mathematic equation

Law of Cosines Calculator

So the law of cosines tells us that C-squared is equal to A-squared, plus B-squared, minus two A B, times the cosine of theta. And just to remind ourselves what the A, B's, and C's are, C is the side that's

Do mathematic equation

Homework is a necessary part of school that helps students review and practice what they have learned in class.

Determine math equation

Math is a way of determining the relationships between numbers, shapes, and other mathematical objects.

Expert tutors will give you an answer in real-time

You can get an expert answer to your question in real-time on JustAsk.

Our students say
Deal with math equations