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Actually, since it doesn't mention the arrangement from left to right or right to left, A can be correct in a vague ways.
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Actually in C, the correct word to use will be 'must' instead of 'may' - that is causing the vagueness in the statement... May be 0 means 0 is also included.
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since cos varies from -1 to 1, so 2^cosx varies from 1/2 to 2.
And sin x graph , i think you know. So mod of that graph will have everything reflected above x axis.
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I think it's correct statement and correct reason /explanation.
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b and d since the inert elements show a variation in general trend.
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Least value of 2^ cosx = 1/2 and max value is 2.
Click on the graph to view in detail.
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Acc. to graph, there are 4 solutions! not 2.
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2^cosx = |sin x| within the interval (0,2pi)
Just draw the graphs of both expressions
2^cosx (and cos varies from -1 to 1, so draw accordingly)
And |sinx| , draw the sin graph and invert everything to positive y axis. Then you'll easily see the number of intersections between the 2 graphs which is equal to the number of solutions.
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13^2 = 169
edit -(Forgot to put ! sign in hurry)it's factorial
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A is false, B true, C true ( since it doesn't state 'necessarily'), D is also correct
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Correct way, but u forgot to include numbers with 0 in them.
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In reality, however, it is 3d motion since the magnus effect comes into effect here, so it cannot be viewed as motion along just 2 axes.
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g = GM/R^2 is applicable for distances greater than or equal to R from the center of the earth only.
else it is g = GMr/R^3
where 'r' is the distance of the chosen point from the center of the earth.
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For particular solution, the question mentions the value of the integral for a given value of x, and using that u can determine the constant of integration
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OH crap, i mistook it as C instead of P...
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