1.

At a given instant, the sides OA and OB of a right angled triangled AOB are 8 cm and 6 cms respectively If OA increases at the rate of 2cm/sec and OB decreases at the rate of 1 cm/sec, therate of decreases of the area of DeltaAOB after 2 seconds is

Answer»

2 SQ cm/sec
1 sq cm/sec
3 sq cm/sec
4 sq cm/sec

Answer :A


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