Two circles are touching such that they have common tangent
toughest problem of time speed and distance for cat
Solution:-
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ABCD IS A TRAPEZIUM AND E,F ARE THE POINTS ON AD AND BC SUCH THAT AE:ED=1/3,BF:FC=1/3, FIND AB,CD,IF AREA(ABEF):AREA(EFCD)=19:213
Sum of infinite series
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