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sinA=3/5
sin=height/hypotenuse
according to Pythagoras theorem,
AC^=AB^-BC^
4^=3^-BC^
16=9-BC^
BC^=√(-7)
cosA=base/hypotenuse
=BC/AC
=√-(7)/4
tanA=height/base
=AB/BC
=3/√-(7).
sin=height/hypotenuse
according to Pythagoras theorem,
AC^=AB^-BC^
4^=3^-BC^
16=9-BC^
BC^=√(-7)
cosA=base/hypotenuse
=BC/AC
=√-(7)/4
tanA=height/base
=AB/BC
=3/√-(7).
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