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for this the radius of circle should be real
Or g^2+f^2-c>0
Or 1+25-13k > 0
Or k should be less than 2
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Right answer anurag.
Ashu i will suggest that you ask specific questions rather than asking about a topic.
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How can a point source have a cubic geometry. A point has no shape.
Is the source emitting diffused light(in all directions) or just perpendicular to the faces.
In first case it will illuminate complete inner surface of cubic crystal
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Aviash you have not posted the diagram. Without that it is impossible to answer the question. So please post it as soon as possible.
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aadit sorry friend but i do not have irodov right now. Can you post the figure for me.
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It is not onto because many real number in the range are not image of any point. For example there is no point for which f(x) = 0.5
It is not one to one because image of many points is like are same. For example image of any positive number is 1 only
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We wii see the function in domain of 0 to 2pi
In first and forth quadrant cos(x)>0
So there will be no solution
pi/2 and 3pi/2 are two solutions
In second quadrant
2^cos(x) will decrease from 1 to 1/2 while lsin(x)l will decrease from 1 to zero So there will be one solution in this section
Simillarly there will be one more root in third quadrant
So 4 roots in 0 to 2pi
So answer is 8n
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tan(theta) for both the numbers is same
So arg(z4) = arg(z2)+pi
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when x tends to zero sin(x)/x is less than 1 while tanx/x is greater than 1. (At x = 0, sin(x) goes below y=x line while tan(x) goes above that line)
So answer is (n-1) + (n) = 2n-1
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Om your question is not correct
You can'y have subset of 1,2,3,...,n
The number of all subsets cannnot be three
One quater of three is 0.75, you can't have 0.75 sets
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Vgnesh we are sorry that we can't answer this question because your question is not clear. Can you again write complete question with no short forms.
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Sreemoyee we answer only one question per post in this forum.
Since youhave written density of hydrogen as question i am answering it.
Assuming hydrogen to be an ideal gas at NTP 1 mole = 22.4 ltr
We also know that one mole = 2 gram
So density at NTP = 2/22.4 g/ltr
=0.089g/ltr
And yash what is this 7.13 g/cc
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In NH3 nitrogen is sp3 hybridised. In which 3 orbitals are bonded with hydrohen and forth is lone pair.
The angle between bonds is 107 degree
In H2O oxygen is also sp3 hybridised. In which 2 orbitals are bonded with hydrohen and other two are lone pairs.
The angle between bonds is 105 degree
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Please drop pradeep's from the list.It is too lengthy. Add M L Khanna in maths
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Only one question at a time
1) In that case the change will not be sudden. The induced current will not allow field to change suddenly (lenz law)
But final value of field will remain same
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