if sin(A-B)=1/2 and cos(A+B)=1/2 ,0<A+B<90,A>B, find Aand B
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Answered by
1
A=60 and B=30 solution
asifa4:
how show detail
draw right triangle then side map 1 & sqrt(3) and angle 30 &60 respectively after calculate
Answered by
2
let suppose
sin(A-B)=30
cos (A+B)=60
So
A-B=30----1
A+B=60---2
by elimination method of 1&2
A=45
B=15
sin(A-B)=30
cos (A+B)=60
So
A-B=30----1
A+B=60---2
by elimination method of 1&2
A=45
B=15
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