Using the adjoining figure, calculate the values of :
(i) cos θ
(ii) tan Φ
(iii) cosec Φ
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Use the adjoining figure and write the values of :
(i) sin x°
(ii) cos y°
(iii) 3 tan x° - 2 sin y° + 4 cos y°
If (tan θ + cot θ) = 5, find the value of (tan2θ + cot2θ).
