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CBSE Class 10 Answered

<div><img src="https://images.topperlearning.com/topper/tinymce/imagemanager/files/0b3b6c181b8b0765b1ba1fc201ab069e5a1a427a3ea8c1.10227132AquaPowerHD20171126095348.jpg" alt="" /></div> <div>&nbsp;</div> <div>Plz explain it and solve it .</div>
Asked by Shivendra | 26 Nov, 2017, 09:57: AM
Expert Answer
begin mathsize 16px style Let space straight a space be space the space first space term space and space straight d space be space the space common space difference space of space the space given space straight A. straight P.
Now comma
left parenthesis straight m space times space straight m to the power of th space term right parenthesis equals left parenthesis straight n space times space straight n to the power of th space term right parenthesis
rightwards double arrow ma subscript straight m equals na subscript straight n
rightwards double arrow straight m left square bracket straight a plus left parenthesis straight m minus 1 right parenthesis straight d right square bracket equals straight n left square bracket straight a plus left parenthesis straight n minus 1 right parenthesis straight d right square bracket
rightwards double arrow straight m left square bracket straight a plus left parenthesis straight m minus 1 right parenthesis straight d right square bracket minus straight n left square bracket straight a plus left parenthesis straight n minus 1 right parenthesis straight d right square bracket equals 0
rightwards double arrow straight a left parenthesis straight m minus straight n right parenthesis plus left square bracket straight m left parenthesis straight m minus 1 right parenthesis minus straight n left parenthesis straight n minus 1 right parenthesis right square bracket straight d equals 0
rightwards double arrow straight a left parenthesis straight m minus straight n right parenthesis plus left square bracket left parenthesis straight m squared minus straight n squared right parenthesis minus left parenthesis straight m minus straight n right parenthesis right square bracket straight d equals 0
rightwards double arrow straight a left parenthesis straight m minus straight n right parenthesis plus left parenthesis straight m minus straight n right parenthesis left parenthesis straight m plus straight n minus 1 right parenthesis straight d equals 0
rightwards double arrow left parenthesis straight m minus straight n right parenthesis left square bracket straight a plus left parenthesis straight m plus straight n minus 1 right parenthesis straight d right square bracket equals 0
rightwards double arrow straight a plus left parenthesis straight m plus straight n minus 1 right parenthesis straight d equals 0
rightwards double arrow straight a subscript straight m plus straight n end subscript equals 0 end style
Answered by Rashmi Khot | 26 Nov, 2017, 08:02: PM
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