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√2cos(A-B)=1,2sin(A+B)=√3 |
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Answer» Step-by-step explanation: 2cos(A−B)=2sin(A+B)=
: COS(A−B)= 2 3
or SIN(A+B)= 2 3
cos(A−B)=COS30 or sin(A+B)=sin60 A−B=30 or A+B=60 Add the two equations: 2A=90 A=45 ∘
Also, A−B=30 45−B=30 B=15 ∘ |
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