Question

if cos ( A-B ) and sin (A-B) = 1/2 find the value of A and B

Answer 1

sin(a-b)=1/2
a-b=30
thus cos(a-b)=cos30
cos30= √3/2
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Answer 2

Answer:

Step-by-step explanation:

cos(A - B) and sin (A - B) cannot be both equal to 1/2 because then we would get that A - B is 30° and 60° är the same time which is impossible