Q10 (i) y = x sin (a + y), prove that

dy / dx

=

sin²(a+y) / sin (a + y) - y cos(a + y)

(ii) If sin x = y sin (x + a), prove that

dy / dx

=

sin a / sin²(x + a)

(iii) If sin y = x sin (a + y), prove that

dy / dx

=

sin²(a + y) / sin a

Solution

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