(1/sin2A) - (1/tan2A) = ?


A

0


B

1


C

1/2


D

1/√3


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Updated: 1 month ago

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যদি tan (x - 30°) = 1/√3 হয়, তাহলে sinx = ?

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A

1/2

B

√3


C

√3/2


D

1/√2

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যদি tanθ = 1 হয় তবে sinθ - cos(- θ) এর মান কত?


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A

2

B

0

C

1

D

- 1


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নিচের কোনটি সঠিক? 

Created: 1 month ago

A

cot( - θ) = cotθ

B

cos(- θ) = - cosθ

C

sin(- θ) = sinθ

D

cosec(- θ) = - cosecθ

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