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x2 - 3x + 1 = 0 হলে x2 - 1/x2 এর মান-

Created: 1 week ago

A

53

B

55

C

35

D

45

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Updated: 1 week ago

 যদি P = {1, 2, 3, 4, 5, 6}, Q = {2, 3, 4, 6} এবং R = {1, 5, 6} হয়, তবে (P - Q) ∪ R = কত?

Created: 1 month ago

A

{1, 2, 5}

B

{1, 5, 6}

C

{4, 5, 6}

D

{2, 6}

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Updated: 1 month ago

secθ = √4 হলে tanθ = ?


Created: 1 month ago

A

√3/2


B

1/√3


C

√3


D

1


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0

Updated: 1 month ago

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