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f(x)=-x-1 এর বিপরীত ফাংশন f-1(x) হয় তবে দেখাও যে, f(f-1(x))=f-1(f(x)) (If f-1(x) is inverse function of f(x)=-x-1, then show that f(f-1(x))=f-1(f(x)))

Created: 1 year ago | Updated: 1 year ago

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AB=3x-4x2x-2xx<... td>0-x-xxx2x-2x2x5x-4x3x7x-5x

=x3-42-210-1-11 .x 12-225-437-5=x2100010001 =x2000x2000x2

অনুরূপভাবে, BA=x2000x2000x2 

অতএব, AB = BA

অতএব,  x2I1x2A =B-1 I B-1=B-1=Ax2=3x-4x2x-2x1x0-1x-1x1x 

অতএব, B-1=Ax2

 

 

1 year ago

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