You have to find the cos of angle A, so use the Pythagorean equation and trig laws to find the other side of the triangle created by angle A. 3^2 + x^2 = 5^2. x=4. This means cos(A) = 4/5). Make both cos (A) and cos (B) have equal denominators, and add. 148/185 + 60/185 = 208/185. This answer is correct, though it doesn’t appear to be any of the answers you wrote, so either those answers are wrong or you wrote something incorrectly in the problem.
Answer:
40k^2(3k - 2) + 48(3k - 2)
(40k^2 + 48)(3k - 2)
8(5k^2 + 6)(3k -2)
Step-by-step explanation:
Check the image below for your answer. Hope this helped!
Answer: 
Step-by-step explanation:
Sine uses the ratio, 
so we can plug in the information we know. since there is no current value for the opposite side of angle A, we can just use a variable to replace it.
You can't reduce this any further because there is an unknown variable.
Answer:
pls complete your question. what exactly are we supposed to calculate?
