Question

If sin A-sinB = a and cos A+ cosB - b, then
tan(A-B) -
A) 2AB/A^2-B^2
B) 2AB/A^2+B^2
с) 2AB/B^2-A^2
D) depends on the values of A and B

Answer 1

Answer:

2AB/A^2+B^2 is the correct answer

Step-by-step explanation:

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