The identity Sin(α)/Tan(α) = Cos(α) is valid
Trigonometry is study of triangles. All trigonometric ratios are defined using the sides of the right triangle, such as an adjacent side, opposite side, and hypotenuse side. Three major of them are as follows :-
Sine Function:
sin(θ) = Opposite / Hypotenuse
Cosine Function:
cos(θ) = Adjacent / Hypotenuse
Tangent Function:
tan(θ) = Opposite / Adjacent
Lets prove this identity by proceeding with the LHS
= Sin(α)/Tan(α)
= Sin(α)/ (Sin(α)/Cos(α)) (Tan(α) = Sin(α)/Cos(α))
= Sin(α)xCos(α) / Sin(α)
= Cos(α)
Hence verified
Learn more about Trigonometric Ratios here :
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0.989, 1.118, 1.637, 1.83, 1.01, 1.912, 1.115, 2.504, 2.2,1 3.3, 1.127, 1.281, 2.4, 0.356, 653.63, 1.714, 2.036, 1.305 from leas
Norma-Jean [14]
Answer:
0.356, 0.989, 1.01, 1.115, 1.118, 1.127, 1.281, 1.305, 1.637, 1.714, 1.83, 1.912, 2.036, 2.2, 2.4, 2.504, 13.3, and 653.63
Answer:
D. 35 + 145 = x
The sum of the angles = 180 degree
Step-by-step explanation:
So she had one Board and she cut it in two parts. I part is 1 7/8 feet long and the other part is 3 1/2 feet long
