cos(40+x)=sin30 find the value of x
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Answered by
26
cos(40+x)=sin 30
sin(90-(40+x))=sin 30
sin(50-x)=sin 30
sin50-sin30=sin x
sin20=sinx
.'. x=20°
sin(90-(40+x))=sin 30
sin(50-x)=sin 30
sin50-sin30=sin x
sin20=sinx
.'. x=20°
profswh:
you again did it wrong
Answered by
14
cos(40+x)=sin30
sin(90-(40+x))=sin30
sin(50-x)=sin30
50-x=30
x=20
sin(90-(40+x))=sin30
sin(50-x)=sin30
50-x=30
x=20
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