Please give me the correct answerx + y = 5 and xy=6 then the value of

1.	Please give me the correct answerx + y = 5 and xy=6 then the value of x^3 -y^3 = ______.
Answer» <html><body><p>-step <a href="https://interviewquestions.tuteehub.com/tag/explanation-455162" style="font-weight:bold;" target="_blank" title="Click to know more about EXPLANATION">EXPLANATION</a>:Since the image is formed on the screen, if is real. Real object and real image <a href="https://interviewquestions.tuteehub.com/tag/implies-1037962" style="font-weight:bold;" target="_blank" title="Click to know more about IMPLIES">IMPLIES</a> concave mirror.Applying m=ff−u or −2=ff−u (i)After shifting, −3=ff−(u+5) (ii)Here, <a href="https://interviewquestions.tuteehub.com/tag/care-909625" style="font-weight:bold;" target="_blank" title="Click to know more about CARE">CARE</a> should be taken that distance of the object becomes u+5 not u−5: In a concave mirror the size of real image will increase only when the real object is brought <a href="https://interviewquestions.tuteehub.com/tag/closer-7270227" style="font-weight:bold;" target="_blank" title="Click to know more about CLOSER">CLOSER</a> to the mirror. In doing so, its x-coordinate will increase.From (i) and (ii), we getf=−30cm or R=60cmhope this <a href="https://interviewquestions.tuteehub.com/tag/helps-1018140" style="font-weight:bold;" target="_blank" title="Click to know more about HELPS">HELPS</a> you</p></body></html>

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