Question

trigonometry formula​

Answer 1

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$\bold{\longmapsto}$Let us consider the following right-angled triangle:

As you can see, the three sides of the triangle are:

a. Base: The side that is horizontal to the plane.

b. Perpendicular: The side making an angle of 90 degree with the Base.

c. Hypotenuse: The longest side of the triangle.

Also, θ is the angle made by Hypotenuse and Base.

Then,

sine of angle θ = sinθ = Perpendicular/ Hypotenuse

cosine of angle θ = cosθ = Base/ Hypotenuse

tangent of angle θ = tanθ = Perpendicular/ Base

cotangent of angle θ = cotθ = Base/Perpendicular

cosecant of angle θ = cosecθ = Hypotenuse/Perpendicular

secant of angle θ = secθ = Hypotenuse/ Base

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Answer 2

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a. Base: The side that is horizontal to the plane.

b. Perpendicular: The side making an angle of 90 degree with the Base.

c. Hypotenuse: The longest side of the triangle.

Also, θ is the angle made by Hypotenuse and Base.

Then,

sine of angle θ = sinθ = Perpendicular/Hypotenuse

cosine of angle θ = cosθ = Base/ Hypotenuse

tangent of angle θ = tanθ = Perpendicular/ Base

cotangent of angle θ = cotθ = Base/Perpendicular

cosecant of angle θ = cosecθ = Hypotenuse/Perpendicular

secant of angle θ = secθ = Hypotenuse/ Base

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