Q. 155.0( 1 Vote )

Find , when
If x = cos t (3 – 2 cos2 t) and y = sin t (3 – 2 sin2 t) find the value of at (CBSE 2014)

Answer :

considering the given functions,


x = cost(3-2)


x = 3cos t -


……(1)


……(2)


| from equation 1 and 2




When t


cot

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