1.

Assertion (A): The ordinate of a point describing the circle x^(2) + y^(2) = 25 decreases at the rate of 1.5 cm/s. The rate of change of the abscissa of the point when ordinate equals 4 cm is 2 cm/s. Reason (R ) : x dx + y dy = 0

Answer»

Both A and B TRUE and R is the CORRECT EXPLATION of A
Both A and R are true and R is not the correct explanation of A
A is true but R is FALSE
A is false but R is true

Answer :A


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