যখন cos2A =119169 , তখন sin A এর মান -
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During the four years that Mr. Rahim owned his car,he found that his total car expenses were Tk. 18,000. Fuel and maintenance costs accounted for 1/3 of the total cost and together these two costs accounted for 1/5 of the total cost. If the only other expenses were taxes and License fees, then the cost of financing was how more of less than the cost of taxes and license fees?

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A factory that employs 1000 assembly -in workers pays each of these workers at a rate of Tk. 5 per hour for the first 40 hours worked during a week and 1.5 times that rate for the hours worked in excess of 40 hours. whatis the total amount paid to the workers in a week in which 30% of the workers worked 20 hours, 50% worked 40 hours and the rest of the workers worked 50 hours?

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7,24 এবং 25 একক বাহুবিশিষ্ট ত্রিভুজের ক্ষেত্রফল-

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Three valves, when opened individually, can drain the water from a certain tank in 3,4 and 5 minutes respectively . What is the greatest part of the tank that can be drained in one minute by opening just two of valves?

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If n is an integer such that when n is divided by 2 , the remainder is 1, when n is divided by 3, the remainder is 2, and when n is divided by 4, the remainder is 3. what is the least possible value of n?

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