If sinx+cos y=1;x=30°and y is acute angle ,find the value of y.
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x=30
substitute in the given equation
sin30+cosy=1
1/2+cosy=1
cosy=1-1/2
cosy=1/2
we know, cos60=1/2
so y=60 degree
substitute in the given equation
sin30+cosy=1
1/2+cosy=1
cosy=1-1/2
cosy=1/2
we know, cos60=1/2
so y=60 degree
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