what is the value of sin 75 plz explain?
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Sin75=sin(30+45)
Sin(A+B)=sinAcosB+cosAsinB
Sin(30+45)=sin30cos45+cos30sin45
=(1/2)(1/√2)+(√3/2)(1/√2)
=(1/2√2)+(√3/2√2)
=1+√3/2√2
Sin(A+B)=sinAcosB+cosAsinB
Sin(30+45)=sin30cos45+cos30sin45
=(1/2)(1/√2)+(√3/2)(1/√2)
=(1/2√2)+(√3/2√2)
=1+√3/2√2
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