Math, asked by Nochukook, 8 days ago

If x sin A + y cos A = z, then x cos A-y sin A is equal to​

Answers

Answered by мααɴѕí
1

Answer:

Given x sin (a + y) + sin a cos (a + y) = 0

x = [- sin a cos (a + y)]/sin (a + y)

= – sin a cot (a + y)

Differentiate w.r.t.y

dx/dy = -sin a. -cosec2 (a + y)

= sin a/sin2 (a + y)

dy/dx = sin2 (a+y)/sin a

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