MCQ
Select the correct option from the given alternatives:
The cotangent of the angles `pi/3, pi/4 and pi/6` are in
Options
A.P.
G.P.
H.P.
Not in progression
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Solution
G.P.
Explaination:
`cot pi/3 = 1/sqrt(3), cot pi/4 = 1, cot pi/6 = sqrt(3)`
∴ `cot pi/3 cot pi/6 = 1 = (cot pi/4)^2`
∴ `cot pi/3, cot pi/4, cot pi/6` are in G.P.
Is there an error in this question or solution?
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