Write the derivative of [x cos(x)] with respect to x?

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+2 Mathematics Limits and Derivatives

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Sarvajeet Kumar

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cos(x) - xsin(x).
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Cystic Fibrosis is the most common generic disease in white european and american populations.It results from one of a nmber of mutations in a single gene that codes for a protien involved in the transport of salts in the cells of the body. The cystic fibrosis gene is described as recessive , which means that individuals with only one copy of the gene so called carriers , show no symptoms of the disease and manny be unaware that they carry the gene. Individuals with two copies of the faculty CF gene will show symptom of the condition. Among white europeons,the probability of being a carrier is 1/25. For a child whose parents are both carriers, the probability of inheriting a copy of the CF gene from both parents is 1/4. a)What is the probability that any two white Europeans planning to have a child together would both be carriers? b) What is the probability of the child having cystic fibrosis?
Dear kulwinder the answer to ur first question is that u have already stated 1/25 Europeans. and every 1 child out of 4 can have the chances of having the nasty disease.
Kulwinder Sehjal
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. Two parallel beams of electrons moving in the same direction will __________. (Repel each other, Attract each other, Neither attract nor repel each other.
Attract as well as repell each other.
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May I know the membership cost of Urbanpro?
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Vidhya Vaibhava Education Institution
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All material objects are composed of __________. ((Electron, Proton, Neutron, atoms)
atoms
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Three men in a cafe order a meal the total cost of which is Rs1500. They each contribute Rs500. The waiter takes the money to the chef who recognizes the three as friends and asks the waiter to return Rs500 to the men. The waiter is not only poor at mathematics but dishonest and instead of going to the trouble of splitting the Rs500 between the three he simply gives them Rs100 each and pockets the remaining Rs200 for himself. Now, each of the men effectively paid Rs400, the total paid is therefore Rs1200. Add the Rs200 in the waiters pocket and this comes to Rs1400.....Where has the other rs100 gone from the original rs1500?
The actual amount paid by the three men here is Rs 1200 as each of them contributed Rs 400. Out of this money the chef has taken Rs 1000 and the waiter pocketed Rs 200. Thus the calculation matches.
Dr Harshad Patel

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