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Sin-1(sin x+ cos x÷√2) . Simply …

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Sin-1(sin x+ cos x÷√2) . Simply it

    • Posted by Pragathi Yadhav 7 years, 8 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    .Ismat .Jamil 7 years, 8 months ago

    Sinx+cosx)/√2= sinxcosπ/4+cosxsinπ/4... (as1/√2=cosπ/4=sinπ/4) =sin(x+π/4)...... .. by formula sin(A+B)=sinAcosB+cosAsinB ,here A=x,B=π/4,,,,,,as sin-1(sinX)=X. Sin-1(sin(x+π/4)=x+π/4

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