The law of cot or Tangent which is also called as cot-tangent formula or cot-tangent rule is the ratio of the cote of the angle to the cos of the angle in tangent formula
Tan Theta = Opposite / Adjacent
Cot Theta = Base / Perpendicular
cot – Tan x formula
The Tan Θ is the ratio of the Opposite side to the Adjacent, where (Θ) is one of the acute angles.
Tan Theta = Opposite/Adjacent
Cot Theta = Perpendicular / Hypotenuse
Tan alpha Questions
Out of other 6 trigonometric formulas, let’s have a look at the practice question of tan theta formula.
Question 1: If Sec x = 4/7, find tan x?
Solution: As Sec x = 1/cos x
4/7 = 1/ cos x
Cos x = 4/7
Tan2 x = sec2x – 1
= (4/7)2 – 1
= 16/49 – 1
= – 25/49
= – 5/7
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