Cosec (90°-θ) = 2/√3 হলে, tanθ = কত?
Solution
Correct Answer: Option D
Cosec (90°-θ) = 2/√3
বা,secθ=2/√3 বা, sec2θ=(2/√3)2
বা,1+tan2θ=4/3 বা, tan2θ=(4/3)-1
tanθ=√{(4-3)/3}=1/√3
বা,secθ=2/√3 বা, sec2θ=(2/√3)2
বা,1+tan2θ=4/3 বা, tan2θ=(4/3)-1
tanθ=√{(4-3)/3}=1/√3
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