Question

ok my first question for today is please explain sin cos and tang in terms of work done .Explain me how cos sin and tan and all that gets canceled when the body is at 90 degrees I know the question is ruffled up so a supa smart human being help me​

Answer 1

Answer:

work done = F × s × cosA

now cos90 = 0

so

w = F × s × 0

w = 0

now by definition too you know that work done is know when displacement takes places in the direction of force then work is done called.

here you clearly know displacement is taking in perpendicular direction of force so no work is done.

Answer 2

Answer:

The tangent of x is defined to be its sine divided by its cosine: tan x = sin x cos x . ... The secant of x is 1 divided by the cosine of x: sec x = 1 cos x , and the cosecant of x is defined to be 1 divided by the sine of x: csc x = 1 sin x .

Explanation:

Cos 90° = 0

For a triangle, ABC having the sides a, b, and c opposite the angles A, B, and C respectively, the cosine law is defined.