Question & Answer - Recent activity https://qna.enoteshare.com/activity Powered by Question2Answer $A=\{x\in N: x $ মৌলিক সংখ্যা এবং $ x<10\}$, $B=\{4,5\}$, $C=\{x\in N: x^2>7, $$x^3<136\}$ প্রমাণ কর যে, $(A\cap C)\cup(B\cap C)$$=(A\cup B)\cap C$ https://qna.enoteshare.com/21403/ Algebra https://qna.enoteshare.com/21403/ Mon, 21 Sep 2026 15:26:47 +0000 Edited: $A=\{x: x\in N, $$x^2-5x+6=0\}$, $B=\{x: x\in N, $$2 < x < 6\}$ হলে প্রমাণ কর যে, $(A \setminus B)\cup (B \setminus A) = (A \cup B) \setminus (A \cap B)$ https://qna.enoteshare.com/21401/?show=21401#q21401 Algebra https://qna.enoteshare.com/21401/?show=21401#q21401 Mon, 21 Sep 2026 14:51:55 +0000 Answered: $A=\{3,4,5,6\}$ হলে $P(A)$ নির্ণয় করে দেখাও যে, $A$ সেটের উপাদান সংখ্যা $n$ হলে $P(A)$ এর উপাদান সংখ্যা $2^n$ কে সমর্থন করে। https://qna.enoteshare.com/21399/?show=21400#a21400 Algebra https://qna.enoteshare.com/21399/?show=21400#a21400 Mon, 21 Sep 2026 14:15:37 +0000 Answer selected: $\frac{a}{x}=\frac{b}{y}=\frac{c}{z}$ হলে প্রমাণ কর যে, $\frac{a^3+b^3+c^3}{x^3+y^3+z^3}=\frac{abc}{xyz}$ https://qna.enoteshare.com/19374/?show=19375#a19375 Math https://qna.enoteshare.com/19374/?show=19375#a19375 Sun, 20 Sep 2026 17:23:52 +0000 Answer selected: দেখাও যে, $1+3+5+7+ \cdots +125$$=169+171+173+ \cdots +209$। https://qna.enoteshare.com/19350/?show=19371#a19371 Algebra https://qna.enoteshare.com/19350/?show=19371#a19371 Sun, 20 Sep 2026 17:22:59 +0000 Answer selected: সিনজেনেসিয়াস কী? 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