tanθ = Cotθ হলে θ এর মান কত?

A

30°

B

45°

C

60°

D

90°

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সমাধান:

দেওয়া আছে,

tanθ = Cotθ

⇒ tanθ = 1/tanθ

⇒ tan2θ = 1

⇒ ​tanθ = √1 = 1

​⇒ tanθ = tan45°

∴ θ = 45°

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Updated: 1 month ago

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