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Sin90+Tan360+Sec90?

Asked by Rajkmar Poran 17/09/2016 Last Modified 06/09/2017

88 Answers

Learn Class XI-XII Tuition (PUC)

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If tan x = a/b, then what is the value of (b cos 2x + a sin 2x)?

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Can some body clearly explain the graphical meaning of differentiation and integration?

In simple terms integration is area under the curve and differentiation is the slope of the curve.

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Dear friends, Please correct me in case I am wrong. I your opinion , what should be the maximum number of students in a coaching class, so that each student can have maximum dedicated time from the attending teacher in the classroom. In present days, cost and time of coaching / tuition matters a lot . The same will be demontrated by the following two examples : Example 1 : Suppose a student pays Rs. 4000/= per month ( 26 days in a month , excluding Sundays ), One hour per day , number of student is only one, then cost of coaching per minute works out to (Rs. 4000/=X 1 Student )/(26 days X 60 min/day ) = Rs.2.56 per min. cost and he will get dedicated time of 60 min. each day to carry on his studies. Example - 2 : Suppose a student pays Rs. 2000/= per month ( 26 days in a month , excluding Sundays ), One hour per day , number of student is 30 in a class, then cost of coaching per minute works out to (Rs. 2000/=X 30 Students in a coaching class ) / (26 days X 60 min/day ) = Rs.38.46 per min. cost and he will get dedicated time of only two min. each day for his studies. The above examples shows that though the monthly fees paid by each student is just half ( Rs. 2000/= see example -2 ) in case of classroom type of coaching as compared to the individual coaching ( Rs. 4000/= see example - 1 ), but on the other side cost of coaching per min. based on true dedicated time is 15 times higher in case of classroom type coaching with mass students than single student coaching. These can be however extrapolated for any number of students in a coaching class. As a result the speed of learning process of a student will be about fifteen times slower in classroom type coaching having mass students in a class ignoring the other factors. However, it may be the choice of the students and parents which option is better for them ? Regards, Sudhansu bhushan Roy.

Sir your calculations are excellent. I would like to add few things. 1. It depends on the student / parents choice at the end. 2. It never implies that effective attention to a student is 2-3 mins, so...

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Does zero correlation mean independence?

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I have been trying to figure out the following things from past 3 days 1 ) I am not able to add my extra certification course details on my profile . 2) Is there any was where I can see all questions asked by students/teacher on my dashboard at once, rather than clicking on each & every page of discussion topic? I would appreciate the help Thanks

1. AFTER LOG IN, you can click on this link to add a course http://www.urbanpro.com/course2/create. 2. On your dashboard there is a title 'Recent Questions by Students'. on the same title box on the...

Parul M Patel

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Much debate has been going on about whether Aadhaar must be provided in income tax return. Recently, the Supreme Court of India has said that if you have an Aadhaar Card you must mention it while filing...

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If (x+a)(x+1991) + 1 Can Be Factored As (x+b)(x+c) Where B,C Are Integers Then Find The Sum Of All Possible Integral Values Of A?

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feed your brain to improve concentration

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