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Question
2i এর বর্গমূল কোনটি?
-1+i
1-i
-1
±
(
1
+
i
)
ANSWER : 4
Descrption
<p>2i=(1+2i-1)</p><p>2i=(1+2.i.1+i<sup>2</sup>)</p><p>2i=(1+i)<sup>2</sup></p><p>so, 2i=<u>+</u>{(1+i)<sup>2</sup>}<sup>1/2</sup></p><p> =<u>+</u>(1+i)</p><p>so, নির্ণেয় বর্গমূল <u>+</u>(1+i)</p>
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