Bissoy.com
Doctors Medicines MCQs Q&A

(a) y = sec x হলে , দেখাও যে, y2=y(2y2-1)

(a) y = sec x হলে , দেখাও যে, y2=y(2y2-1) Correct Answer y(2y2-1) (showed)

Related Questions

Six bells make a sound of tick together in the beginning and after every 5 sec, 10 sec, 15 sec, 20 sec, 18 sec, and 21 sec respectively. How many times will the bells ring together in 1.5 hours?
In a 200 meters race, Rohan can give Rahul a 20 meters start and in a 36 km race Rahul can give Sanjay a 4 km start. If the speed of Rahul is 36 m/sec then what is the speed of Rohan in m/sec? A. 20 m/sec B. 40 m/sec C. 24 m/sec D. 50 m/sec
Five bulls participate in a race, they started running simultaneously from a circular track. They took 100 sec, 200 sec, 300 sec, 400 sec, and 500 sec to complete one round. After how much time do they meet at the starting point for the first time?
50 kg ভরের এক ব্যক্তি 1950 kg ভরের একটি গাড়ি স্থিরাবস্থা থেকে প্রথম 10 ‍sec সমত্বরণে চলল। অতঃপর 10 min সমবেগে চলানোর পর ব্রেক চেপে 1 ‍sec এর মধ্যে গাড়ি থামাল। যাত্রা শুরুর 4 sec পর গাড়ির বেগ 8 m/sec হলে গাড়ি কতৃক ‍অতিক্রান্ত মোট দূরত্ব নির্ণয় কর?
Four lights light up simultaneously at starting and an interval of 6 sec, 12 sec, 15 sec and 20 sec respectively. How many times do they light up together in 2 hours?
Four bells ringing together and ring at an interval of 12 sec, 15 sec, 20 sec, and 30 sec respectively. How many times will they ring together in 8 hours?  
A train crosses a bridge at a speed of x m/sec in one min. and a pole at 2x m/sec in 8 sec. If length of the bridge is 660 m. How many seconds does it take to cross the bridge at 3x m/sec.
Four bells ring simultaneously at starting and an interval of 6 sec, 12 sec, 15 sec and 20 sec respectively. How many times they ring together in 2 hours?
Four runners started running simultaneously from a point on a circular track. They took 300 sec, 100 sec, 150 sec and 450 sec to complete one round. After how much time do they meet at the starting point for the first time?
A beats B by 13 sec in a 250 m race, B beats C by 18 sec in a 400 m race, C beats D by 21 sec in 600 m race and D beats E by 36 sec in a 750 m race. What must be the speed of A in order to beat E by 200 m in a 1 km race?