1411 . $y=x+3$ এবং $2x+y=9$ হলে $y$ এর মান কত ? ..

• A. 2
• B. 5
• C. 6
• D. 8

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Answer: Option A

Explanation:

1412 . $\sqrt{5x-4}=-1$ হলে, $x$ এর মান কত ? ..

• A. 1
• B. 3
• C. 4
• D. 5

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Answer: Option A

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1413 . $x-\frac{1}{x}=5$ হলে ${\left(x+\frac{1}{x}\right)}^2$ এর মান কত? ..

• A. $29$
• B. $30$
• C. $31$
• D. $32$

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Answer: Option A

Explanation:

1414 . $x-y=0$ হলে, $x^1-y^1$ এর মান কত ? ..

• A. $x^1+y^1$
• B. $x^1-y^1$
• C. $0$
• D. $3$

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Answer: Option C

Explanation: