যদি (x - y)2 = 14 এবং xy = 2 হয়, তবে x2 + y2 = কত? 

A

12

B

 14

C

 16 

D

18

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Updated: 3 months ago

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(1/2){(a + b)2 + (a - b)2} = কত? 

Created: 5 months ago

A

a2 + b2 

B

a2 - b2 

C

{(a + b)2/2 - (a - b)2/2}

D

 (a + b)2 + (a - b)2

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(a2 + b2- c2 + 2ab)/(a2 - b2 + c2 + 2ac) = কত? 

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A

a + b + c 

B

(a + b - c)/(a - b + c) 

C

(a - b + c)/(a + b - c) 

D

(a + b - c)/(a + b + c)

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x2 + 3x - 10 > 0 অসমতাটির সমাধান কোনটি?

Created: 1 month ago

A

(- 5, 2)

B

(- ∞, - 5) ∪ (2, ∞)

C

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D

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