Will give brainiest answer!
what are the ratios for sin a and cos a? the diagram is not drawn to scale
a. sin a = 5/13, cos a = 12/13
b. sin a = 12/13, cos a = 5/13
c. sin a = 12/13, cos a = 5/12
d. sin a = 12/5, cos a - 5/14
you!

B. sin A = 12/13, cos A = 5/13

Step-by-step explanation:

The given triangle is a right triangle. In the right triangle, the hypotenuse = 13, Opposite side = 12 and Adjacent side = 5 with respect to the ∠A.

sin and cos are the trigonometric ratios.

sin = opposite / hypotenuse

cos = Adjacent /hypotenuse

With respect to ∠A.

sin A = Opposite /Hypotenuse.

Now plug in opposite side = 12 and hypotenuse = 13 to get sin A

sin A = 12/13

cos A = Adjacent/Hypotenuse.

Here adjacent side =5 and hypotenuse = 13.

So, cos A = 5/13

Therefore answer is B. sin A = 12/13, cos A = 5/13

what is the original number? you forgot to add it.

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this