If cos (A-B)=1/root 2 sin(A+B) = root 3/2 & A,B are acute angles whose sum is acute find A and B
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If cos (A-B)=1/root 2 sin(A+B) = root 3/2 & A,B are acute angles whose sum is acute find A and B
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Step-by-step explanation:
cos 45= 1/√2=cosA-B
A-B= 45_____1eq
similarly we find
A+ B= 60_____2 eq
solve both eq.by elimination or by substitution
A= 52.5
B= 7.5